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Contents
- The climate of Fairfield
- The best time to visit Fairfield
- The worst time to visit Fairfield
- Spring weather in Fairfield
- Summer weather in Fairfield
- Autumn weather in Fairfield
- Winter weather in Fairfield
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Fairfield
Fairfield, Iowa, situated in the heartland of the USA, operates under a Humid continental climate, or as it's known under the Köppen climate classification, Dfa. This designation indicates a climate with no dry season and hot summers. The climate of Fairfield is characterized by substantial variations through the calendar year.
Temperature patterns in Fairfield exhibit a wide range. Winter months see average highs from 29.1°F (-1.6°C) in January to 48.4°F (9.1°C) in March, with lows gravitating between 16.5°F (-8.6°C) and 33.3°F (0.7°C). The climate warms up in the summer, unleashing temperatures between a high of 79.9°F (26.6°C) in June and a peak of 82.4°F (28°C) in July, while lows remain comfortably in the range from 63.3°F (17.4°C) to 65.3°F (18.5°C). The heat subsides as the year draws to a close, with autumn highs between 76.1°F (24.5°C) in September and 47.7°F (8.7°C) in November, and lows from 56.3°F (13.5°C) down to 33.8°F (1°C).
Rainfall patterns in Fairfield adhere to a predictable rhythm, with the maximum average monthly precipitation of 4.45" (113mm) in May, and the minimum of 1.18" (30mm) in both January and December. Snowfall, on the other hand, is reserved primarily for the winter months from November to March totaling up to 8.79" (223mm), with January and February contributing the most with 4.33" (110mm) each.
As for sun exposure, the longest daylight hours extend from 13.3 hours in April to a peak of 15.1 hours in June. Sunshine hours also peak in the summer from 9.8 hours in June to a maximum of 10.1 hours in July. Meanwhile, wind speeds range between a yearly low of 7mph (11.3km/h) in June, July, and August, to a high peak of 10.8mph (17.4km/h) in January.
Temperature patterns in Fairfield exhibit a wide range. Winter months see average highs from 29.1°F (-1.6°C) in January to 48.4°F (9.1°C) in March, with lows gravitating between 16.5°F (-8.6°C) and 33.3°F (0.7°C). The climate warms up in the summer, unleashing temperatures between a high of 79.9°F (26.6°C) in June and a peak of 82.4°F (28°C) in July, while lows remain comfortably in the range from 63.3°F (17.4°C) to 65.3°F (18.5°C). The heat subsides as the year draws to a close, with autumn highs between 76.1°F (24.5°C) in September and 47.7°F (8.7°C) in November, and lows from 56.3°F (13.5°C) down to 33.8°F (1°C).
Rainfall patterns in Fairfield adhere to a predictable rhythm, with the maximum average monthly precipitation of 4.45" (113mm) in May, and the minimum of 1.18" (30mm) in both January and December. Snowfall, on the other hand, is reserved primarily for the winter months from November to March totaling up to 8.79" (223mm), with January and February contributing the most with 4.33" (110mm) each.
As for sun exposure, the longest daylight hours extend from 13.3 hours in April to a peak of 15.1 hours in June. Sunshine hours also peak in the summer from 9.8 hours in June to a maximum of 10.1 hours in July. Meanwhile, wind speeds range between a yearly low of 7mph (11.3km/h) in June, July, and August, to a high peak of 10.8mph (17.4km/h) in January.
The best time to visit Fairfield
Lovers of mild climates would find the months spanning from late spring towards early fall the perfect time to drop in on Fairfield. With highs ranging from 60.4°F (15.8°C) in April to 76.1°F (24.5°C) in September, and lows betwixt 43.2°F (6.2°C) and 56.3°F (13.5°C) in the same timeframe, the temperature stays in an agreeable range. Furthermore, May records the best overall visibility with an average of 6 miles, accompanied by the most rain at 4.45" (113mm), ensuring the surrounding nature is lush and blooming.
The worst time to visit Fairfield
The harshest weather conditions tend to strike Fairfield during the winter months. With January highs averaging at a chilly 29.1°F (-1.6°C) and lows dropping down to
16.5°F (-8.6°C), this period sees the most snowfall with an average of 4.33" (110mm), making travel difficult.
16.5°F (-8.6°C), this period sees the most snowfall with an average of 4.33" (110mm), making travel difficult.
Spring weather in Fairfield
As winter thaws and temperatures climb, spring in Fairfield sees highs between 48.4°F (9.1°C) in March and 70.3°F (21.3°C) in May. The lows, which start at 33.3°F (0.7°C) in March, sharply ascend to a moderate 53.6°F (12°C) come May. Precipitation levels rise progressively from an average of 2.17" (55mm) in March to as much as 4.45" (113mm) in May.
Summer weather in Fairfield
Summer in Fairfield witnesses temperatures reaching peaks from 79.9°F (26.6°C) in June to 82.4°F (28°C) in July. Evening temperatures hover around a cozy level, from 63.3°F (17.4°C) in June and peaking at 65.3°F (18.5°C) in July. Despite the warmth, rainfall levels drop to 2.56" (65mm) during July from 4.21" (107mm) in June.
Autumn weather in Fairfield
Autumn arrives with a refreshing decline in temperatures, as highs fluctuate from 76.1°F (24.5°C) in September to a considerably cooler 47.7°F (8.7°C) in November. Evening temperatures follow suit, starting at a balmy 56.3°F (13.5°C) in September and dropping to 33.8°F (1°C) by November. Rainfall gradually decreases to a level of 1.69" (43mm) by November from the 2.48" (63mm) noted in September.
Winter weather in Fairfield
Winter brings frosty temperatures to Fairfield, with highs descending from 61.7°F (16.5°C) in December to an icy 29.1°F (-1.6°C) in January. Lows plunge from 24.1°F (-4.4°C) in December to 16.5°F (-8.6°C) in January. This season is marked by the highest snowfall, with January and February each averaging 4.33" (110mm), making this the coldest time with the least favorable conditions for visiting Fairfield.
Weather in January
The Fairfield weather in January experiences chilly conditions, signifying the crest of the winter season. The frequent snowfall, totaling to 4.33" (110mm), paints the city white, which alongside the short daylight hours of 9.6 hours, fosters the quintessential winter ambiance. Weather in January »
Weather in February
In February, Fairfield notices a gradual rise in temperatures, hinting at the advent of spring. Nevertheless, this month's climate retains the winter attributes but with 4.33" (110mm) of snowfall, less than in January. The city starts experiencing longer daylight hours, aiding in subtle temperature movements. Weather in February »
Weather in March
March ushers in the spring season in Fairfield, marked by a moderate climate. Significant characteristics include increased rainfall, reaching 2.7" (69mm), which is greater than the prior month, hence fostering vibrant green landscapes in the city. Weather in March »
Weather in April
April in Fairfield is the epitome of spring weather, with rising temperatures and further lengthening daylight hours. The rainfall in this month increases to the highest so far in the year, peaking at 2.99" (76mm), thus gushing life into the city's flora. Weather in April »
Weather in May
May brings on the early summer vibes in Fairfield, with increasing temperatures and abundant daylight hours of 14.5 hours. Interestingly, this month showcases the most rainfall in the year, accumulating to 4.45" (113mm), thereby beautifying the city's green landscapes. Weather in May »
Weather in June
Subsequently, June portrays classic summer weather in Fairfield. The month highlights the highest daylight hours recorded, which reach 15.1 hours. Despite average rainfall, gusty winds begin declining to an average speed of 7.9mph (12.7km/h), causing the atmosphere to be stagnant and hazy. Weather in June »
Weather in July
July steps in as the hottest month of the year in Fairfield, with temperatures peaking to an average high of 82.4ºF. These temperatures, combined with long daylight hours, make heatwaves a possible concern, necessitating precautionary measures. Weather in July »
Weather in August
August in Fairfield symbolizes the gradual closing of the summer season. The town's climate starts to retrench from July's height with temperatures descending slightly. Surprisingly, this month still maintains the longest sunshine duration of 9.8 hours, compensating for the dwindling daylight hours. Weather in August »
Weather in September
September in Fairfield indicates the onset of the autumn season with reducing temperatures and changing foliage. In spite of this, an increased rainfall of 2.48" (63mm) results from the unstable transitional weather. With a moderate temperature range, the city seems to manifest the perfect fall climate. Weather in September »
Weather in October
October imprints the full strength of autumn in Fairfield with a notable drop in temperatures. Amidst the fall season, the city witnesses an increase in wind speed to 9.6mph (15.4km/h), stirring up the colorful leaves. Reduced rainfall and dwindling daylight hours give a distinct chill to the air, marking the transition towards winter. Weather in October »
Weather in November
November brings about the late autumn chill and the initiation of winter elements in Fairfield. A decline in average temperature to 47.7ºF for the high and 33.8ºF for the low makes it the coldest month since March. The precipitation also decreases to 1.69" (43mm), making it one of the drier months of the year. Weather in November »
Weather in December
Finally, December welcomes winter in Fairfield with the lowest temperatures and shortest daylight hours of 9.3 hours encountered in the year. The month also brings back the snowy conditions, with an average snowfall of 1.65" (42mm). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Fairfield?
January is the coldest month, exhibiting average temperatures of 29.1°F (-1.6°C) at the peak and 16.5°F (-8.6°C) at the base.
What is the driest month in Fairfield?
The months with the least rainfall in Fairfield, Iowa, are January and December Rain falls for 5.3 days and accumulates 1.18" (30mm) of rain.
How many days does it rain in Fairfield?
In Fairfield, during the entire year, the rain falls for 135.6 days and collects up to 28.66" (728mm) of precipitation.
When does it snow in Fairfield?
Months with snowfall in Fairfield, Iowa, are January through April, October through December.
When does it snow the most in Fairfield?
The months with the most snowfall in Fairfield are January and February, with an average 4.33" (110mm) of accumulated snow.
How many days does it snow in Fairfield?
Throughout the year, there are 32.1 snowfall days, and 14.33" (364mm) of snow is accumulated.
What is the month with the least sunshine in Fairfield?
The month with the least sunshine in Fairfield, Iowa, is January, with an average of 4.1h of sunshine.
When is the lowest UV index in Fairfield?
January is the month with the lowest UV index in Fairfield, with an average maximum UV index of 1.
When is Daylight Saving Time (DST) in Fairfield?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Fairfield, Iowa, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the rainiest month in Fairfield?
The month with the most rainfall is May, when the rain falls for 17.4 days and typically aggregates up to 4.45" (113mm) of precipitation.
When it does not snow in Fairfield?
May through September are months without snowfall.
What is the most humid month in Fairfield?
The months with the highest humidity in Fairfield, Iowa, are June and July, with an average relative humidity of 82%.
When are the longest days in Fairfield?
June has the longest days of the year in Fairfield, Iowa, with an average of 15h and 6min of daylight.
When is the highest UV index in Fairfield?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What is the warmest month in Fairfield?
Fairfield's warmest weather arrives in July, when temperatures average a high of 82.4°F (28°C) and a low of 65.3°F (18.5°C).
What month has the most sunshine in Fairfield?
July has the most sunshine of the year in Fairfield, with an average of 10.1h of sunshine.
What is the least humid month in Fairfield?
With an average relative humidity of 71%, October is the least humid month in Fairfield.
What is the month with the shortest days in Fairfield?
The month with the shortest days in Fairfield is December, with an average of 9h and 18min of daylight.
Average temperature
Fairfield, IA
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (29.1°F).
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure
Fairfield, IA
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Fairfield, IA
- Average wind speed in January:
10.8mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.6mph - Average wind speed in April:
10.6mph - Average wind speed in May:
8.9mph - Average wind speed in June:
7.9mph
- Average wind speed in July:
7mph - Average wind speed in August:
7mph - Average wind speed in September:
8mph - Average wind speed in October:
9.6mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity
Fairfield, IA
The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Fairfield, IA
- Average rainfall in January:
1.18" - Average rainfall in February:
1.26" - Average rainfall in March:
2.17" - Average rainfall in April:
2.99" - Average rainfall in May:
4.45" - Average rainfall in June:
4.21"
- Average rainfall in July:
2.56" - Average rainfall in August:
2.05" - Average rainfall in September:
2.48" - Average rainfall in October:
2.44" - Average rainfall in November:
1.69" - Average rainfall in December:
1.18"
The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are January and December (1.18").
Average rainfall days
Fairfield, IA
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
4.9 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
14.1 days - Average rainfall days in May:
17.4 days - Average rainfall days in June:
16.7 days
- Average rainfall days in July:
14.5 days - Average rainfall days in August:
12.1 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
10.6 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
7.1 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is February (4.9 days).
Average snowfall
Fairfield, IA
The months with the highest snowfall are January and February (4.33").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Fairfield, IA
- Average snowfall days in January:
10.3 days - Average snowfall days in February:
7.8 days - Average snowfall days in March:
4.3 days - Average snowfall days in April:
1.1 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.4 days - Average snowfall days in November:
1.7 days - Average snowfall days in December:
6.5 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Fairfield, IA
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 2min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Fairfield, IA
- Average sunshine days in January:
16.3 days - Average sunshine days in February:
15.3 days - Average sunshine days in March:
14.7 days - Average sunshine days in April:
13 days - Average sunshine days in May:
11 days - Average sunshine days in June:
11.5 days
- Average sunshine days in July:
13.4 days - Average sunshine days in August:
16.7 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
18.8 days - Average sunshine days in November:
18.8 days - Average sunshine days in December:
18 days
The months with the most sunshine days are October and November (18.8 days).
The month with the least sunshine days is May (11 days).
Average UV index
Fairfield, IA
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Fairfield, IA
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility
Fairfield, IA
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Fairfield, Iowa, USA
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