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Contents
- 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
Weather in January
January, the same as December, in Thayer, Iowa, is a freezing cold winter month, with temperature in the range of an average high of 29.1°F (-1.6°C) and an average low of 15.8°F (-9°C). Thayer's January weather, with an average high temperature of 29.1°F (-1.6°C) and an average low temperature of 15.8°F (-9°C), tends to be the coldest of the year. Weather in January »
Weather in February
The last month of the winter, February, is a wintry month in Thayer, Iowa, with an average temperature fluctuating between 18.9°F (-7.3°C) and 33.4°F (0.8°C). As February takes hold, the average high-temperature is a cold 33.4°F (0.8°C), nearly mirroring that of the previous month. Weather in February »
Weather in March
March, the first month of the spring in Thayer, is a frosty month, with an average temperature fluctuating between 47.8°F (8.8°C) and 32.5°F (0.3°C). The arrival of March signals a clear increase in the average high-temperature, soaring from a cold 33.4°F (0.8°C) in February to a chilly 47.8°F (8.8°C). Weather in March »
Weather in April
April in Thayer, Iowa, is a mild spring month, with an average temperature ranging between max 59.9°F (15.5°C) and min 42.3°F (5.7°C). April's arrival is marked by an increase in the average high-temperature, moving from a frosty 47.8°F (8.8°C) in March to a refreshing 59.9°F (15.5°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Thayer, Iowa, with an average temperature varying between 69.4°F (20.8°C) and 52.5°F (11.4°C). In Thayer, the average high-temperature in May rises, from a mild 59.9°F (15.5°C) in April, to an agreeable 69.4°F (20.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Thayer, Iowa, with an average temperature varying between 63.1°F (17.3°C) and 79.5°F (26.4°C). The start of June is characterized by an increase in the average high-temperature, transitioning from an agreeable 69.4°F (20.8°C) in May to a warm 79.5°F (26.4°C). Weather in June »
Weather in July
July, like June, in Thayer, Iowa, is another warm summer month, with temperature in the range of an average low of 65.7°F (18.7°C) and an average high of 83.3°F (28.5°C). July is the warmest month, with an average high-temperature of 83.3°F (28.5°C) and an average low-temperature of 65.7°F (18.7°C). For most parts of July, the heat index is estimated at a tropical 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Thayer, is another warm month, with an average temperature ranging between min 63.1°F (17.3°C) and max 81.7°F (27.6°C). The advent of August observes an average high-temperature of a still warm 81.7°F (27.6°C), nearly identical to July's 83.3°F (28.5°C). Weather in August »
Weather in September
September, the first month of the autumn in Thayer, is still a warm month, with an average temperature fluctuating between 56.1°F (13.4°C) and 75.4°F (24.1°C). September's arrival signals a moderate reduction in the average high-temperature, easing from a moderately hot 81.7°F (27.6°C) in August to a still warm 75.4°F (24.1°C). Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Thayer, Iowa, with an average temperature fluctuating between 44.6°F (7°C) and 61.3°F (16.3°C). The onset of October brings a small change in high-temperatures, falling from a warm 75.4°F (24.1°C) in September to a comfortable 61.3°F (16.3°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Thayer, Iowa, with an average temperature ranging between min 32.9°F (0.5°C) and max 47.8°F (8.8°C). November's onset corresponds with a shift in the average high-temperature, moving from a refreshing 61.3°F (16.3°C) in October to a frosty 47.8°F (8.8°C). Weather in November »
Weather in December
December, the first month of the winter in Thayer, is also an icy month, with temperature in the range of an average high of 34.9°F (1.6°C) and an average low of 22.8°F (-5.1°C). Transition from November to December is accompanied by a temperature drop, with average high-temperatures decreasing from a frosty 47.8°F (8.8°C) to a wintry 34.9°F (1.6°C). Weather in December »
Updated: Jul 1, 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 time of the year is the coldest?
In Thayer, the average lowest temperatures are observed in January, with a high of 29.1°F (-1.6°C) and a low of 15.8°F (-9°C).
How much does it rain?
Throughout the year, there are 122.6 rainfall days, and 20.43" (519mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through May, October through December.
When does it snow the most?
January is the month with the most snowfall. Snow falls for 9.2 days and accumulates 3.66" (93mm) of snow.
How much does it snow?
Throughout the year, there are 30.8 snowfall days, and 11.77" (299mm) of snow is accumulated.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 4.3h of sunshine.
When is the lowest UV index?
The month with the lowest UV index is January, with an average maximum UV index of 1.
When is Daylight Saving Time (DST) in Thayer?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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 most humid month?
The most humid month is June, with an average relative humidity of 83%.
What is the wettest month?
June is the month with the most rainfall. Rain falls for 16.4 days and accumulates 3.74" (95mm) of precipitation.
When it does not snow?
In Thayer, snow does not fall in June through September.
When are the longest days?
June has the longest days of the year, with an average of 15h and 6min of daylight.
What are the months with the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What is the hottest time of year?
With average high and low temperatures of 83.3°F (28.5°C) and 65.7°F (18.7°C) respectively, July is Thayer's warmest month.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10.3h of sunshine.
What is the least humid month?
The least humid month is October, with an average relative humidity of 71%.
What is the driest month?
December is the month with the least rainfall. Rain falls for 4.9 days and accumulates 0.63" (16mm) of precipitation.
What is the month with the shortest days in Thayer?
With an average of 9h and 18min of daylight, December has the shortest days of the year.
Average temperature
Thayer, IA
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (29.1°F).
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure
Thayer, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Thayer, IA
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.6mph - Average wind speed in April:
10.5mph - Average wind speed in May:
8.9mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7.1mph - Average wind speed in September:
8.1mph - Average wind speed in October:
9.6mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.2mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity
Thayer, IA
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Thayer, IA
- Average rainfall in January:
0.71" - Average rainfall in February:
0.79" - Average rainfall in March:
1.46" - Average rainfall in April:
1.89" - Average rainfall in May:
3.15" - Average rainfall in June:
3.74"
- Average rainfall in July:
1.93" - Average rainfall in August:
2.13" - Average rainfall in September:
1.81" - Average rainfall in October:
1.22" - Average rainfall in November:
0.98" - Average rainfall in December:
0.63"
The wettest month (with the highest rainfall) is June (3.74").
The driest month (with the least rainfall) is December (0.63").
Average rainfall days
Thayer, IA
- Average rainfall days in January:
3.7 days - Average rainfall days in February:
3.7 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
16.4 days - Average rainfall days in June:
16.4 days
- Average rainfall days in July:
14.4 days - Average rainfall days in August:
13.3 days - Average rainfall days in September:
10.7 days - Average rainfall days in October:
8.8 days - Average rainfall days in November:
6.7 days - Average rainfall days in December:
4.9 days
The months with the highest number of rainy days are May and June (16.4 days).
The months with the least rainy days are January and February (3.7 days).
Average snowfall
Thayer, IA
- Average snowfall in January:
3.66" - Average snowfall in February:
3.07" - Average snowfall in March:
1.57" - Average snowfall in April:
1.22" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is January (3.66").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Thayer, IA
- Average snowfall days in January:
9.2 days - Average snowfall days in February:
8.1 days - Average snowfall days in March:
3.9 days - Average snowfall days in April:
0.9 days - Average snowfall days in May:
0.1 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:
0.8 days - Average snowfall days in November:
1.6 days - Average snowfall days in December:
6.2 days
The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Thayer, 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 2min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 0min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Thayer, IA
- Average sunshine days in January:
19.8 days - Average sunshine days in February:
17.7 days - Average sunshine days in March:
17 days - Average sunshine days in April:
14.1 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
11.3 days
- Average sunshine days in July:
13.1 days - Average sunshine days in August:
14.8 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
19.9 days - Average sunshine days in November:
20.7 days - Average sunshine days in December:
21 days
The month with the most sunshine days is December (21 days).
The months with the least sunshine days are May and June (11.3 days).
Average UV index
Thayer, 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
Thayer, IA
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility
Thayer, IA
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Thayer, Iowa, USA
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