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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, like December, is a freezing cold winter month in Tennant, Iowa, with an average temperature ranging between min 14.5°F (-9.7°C) and max 27.3°F (-2.6°C). The coldest period is January, when temperatures fluctuate between an average high of 27.3°F (-2.6°C) and a low of 14.5°F (-9.7°C). Weather in January »
Weather in February
February, the last month of the winter in Tennant, is also a subzero cold month, with an average temperature varying between 18°F (-7.8°C) and 31.5°F (-0.3°C). As January transitions into February, the average high-temperature rests at a still subzero cold 31.5°F (-0.3°C), maintaining a close resemblance to the previous month. Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Tennant, Iowa, with an average temperature ranging between max 46.9°F (8.3°C) and min 31.8°F (-0.1°C). The onset of March brings a distinct rise in the average high-temperature, advancing from a subzero cold 31.5°F (-0.3°C) in February to a chilly 46.9°F (8.3°C). Weather in March »
Weather in April
April in Tennant, Iowa, is a refreshing spring month, with temperature in the range of an average high of 58.8°F (14.9°C) and an average low of 42.3°F (5.7°C). April's arrival brings a temperature shift, moving from a chilly 46.9°F (8.3°C) in March to a moderate 58.8°F (14.9°C). Weather in April »
Weather in May
May, the last month of the spring in Tennant, is a pleasant month, with temperature in the range of an average low of 52.9°F (11.6°C) and an average high of 69.4°F (20.8°C). May's arrival signals a temperature shift, moving from a moderate 58.8°F (14.9°C) in April to a pleasant 69.4°F (20.8°C). Weather in May »
Weather in June
June, the first month of the summer in Tennant, is a warm month, with an average temperature ranging between max 79.3°F (26.3°C) and min 63°F (17.2°C). As June begins, there is an increase in the average high-temperature, moving from a pleasant 69.4°F (20.8°C) in May to a warm 79.3°F (26.3°C). Weather in June »
Weather in July
July, like June, in Tennant, Iowa, is another warm summer month, with an average temperature varying between 82.6°F (28.1°C) and 64.9°F (18.3°C). July is the warmest month, exhibiting average temperatures of 82.6°F (28.1°C) at the peak and 64.9°F (18.3°C) at the base. The average heat index in July is evaluated at a tropical 89.6°F (32°C). Weather in July »
Weather in August
August, the last month of the summer in Tennant, is also a moderately hot month, with temperature in the range of an average low of 62.1°F (16.7°C) and an average high of 80.2°F (26.8°C). Tennant's entry into August measures an average high-temperature of a still warm 80.2°F (26.8°C), closely parallel to the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Tennant, Iowa, with an average temperature fluctuating between 75°F (23.9°C) and 55.9°F (13.3°C). September's advent presents an average high-temperature of a still moderately hot 75°F (23.9°C), indicating a slight variation from the conditions of the previous month. Weather in September »
Weather in October
October, like September, is a moderate autumn month in Tennant, Iowa, with an average temperature varying between 44.1°F (6.7°C) and 59.7°F (15.4°C). A clear reduction in the average high-temperature is witnessed with the onset of October, reducing from a moderately hot 75°F (23.9°C) in September to a refreshing 59.7°F (15.4°C). Weather in October »
Weather in November
November, the last month of the autumn in Tennant, is another chilly month, with an average temperature varying between 32.2°F (0.1°C) and 46.2°F (7.9°C). In Tennant, the beginning of November is marked by a lowered average high-temperature, shifting from October's mild 59.7°F (15.4°C) to a chilly 46.2°F (7.9°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Tennant, Iowa, with an average temperature fluctuating between 32.2°F (0.1°C) and 20.8°F (-6.2°C). The shift to December brings a decrease in the average high-temperature, falling from a frosty 46.2°F (7.9°C) in November to a wintry 32.2°F (0.1°C). Weather in December »
Updated: Jun 10, 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 time of year?
The coldest time of the year is January, with temperatures averaging a high of 27.3°F (-2.6°C) and a low of 14.5°F (-9.7°C).
What is the most humid month in Tennant?
January is the most humid month, with an average relative humidity of 83%.
What is the driest month?
January is the month with the least rainfall. Rain falls for 3.2 days and accumulates 0.43" (11mm) of precipitation.
How many days does it rain?
Throughout the year, there are 113.5 rainfall days, and 15.71" (399mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through May, October through December.
How many days does it snow?
In Tennant, during the entire year, snow falls for 31.5 days and aggregates up to 7.13" (181mm) of snow.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 4.5h of sunshine.
When is the lowest UV index?
The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2.
When does it snow the most?
February is the month with the most snowfall. Snow falls for 7.3 days and accumulates 2.09" (53mm) of snow.
When is Daylight Saving Time (DST)?
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 wettest month?
The month with the most rainfall is June, when the rain falls for 16.1 days and typically aggregates up to 2.64" (67mm) of precipitation.
When it does not snow?
In Tennant, snow does not fall in June through September.
When are the longest days?
With an average of 15h and 6min of daylight, June has the longest days of the year.
What are the months with the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What month is the hottest in Tennant?
July is the warmest month, with an average high-temperature of 82.6°F (28.1°C) and an average low-temperature of 64.9°F (18.3°C).
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10.4h of sunshine.
What is the least humid month in Tennant?
October is the least humid month, with an average relative humidity of 68%.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 12min of daylight.
Average temperature
Tennant, IA
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (27.3°F).
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure
Tennant, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed
Tennant, IA
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.7mph - Average wind speed in April:
10.9mph - Average wind speed in May:
9.3mph - Average wind speed in June:
8.5mph
- Average wind speed in July:
7.2mph - Average wind speed in August:
7.4mph - Average wind speed in September:
8.5mph - Average wind speed in October:
9.7mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity
Tennant, IA
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (68%).
Average rainfall
Tennant, IA
- Average rainfall in January:
0.43" - Average rainfall in February:
0.47" - Average rainfall in March:
0.91" - Average rainfall in April:
1.26" - Average rainfall in May:
2.6" - Average rainfall in June:
2.64"
- Average rainfall in July:
1.5" - Average rainfall in August:
1.93" - Average rainfall in September:
1.65" - Average rainfall in October:
1.06" - Average rainfall in November:
0.55" - Average rainfall in December:
0.71"
The wettest month (with the highest rainfall) is June (2.64").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days
Tennant, IA
- Average rainfall days in January:
3.2 days - Average rainfall days in February:
2.8 days - Average rainfall days in March:
8.8 days - Average rainfall days in April:
12.8 days - Average rainfall days in May:
15.7 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
13.1 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
8.5 days - Average rainfall days in November:
5.5 days - Average rainfall days in December:
4.2 days
The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is February (2.8 days).
Average snowfall
Tennant, IA
- Average snowfall in January:
1.57" - Average snowfall in February:
2.09" - Average snowfall in March:
1.22" - Average snowfall in April:
0.28" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Tennant, IA
- Average snowfall days in January:
8.3 days - Average snowfall days in February:
7.3 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
1 days - Average snowfall days in May:
0.3 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:
0.7 days - Average snowfall days in November:
3 days - Average snowfall days in December:
6.1 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Tennant, 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 1min
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 12min).
- Average sunshine in January:
4h and 3min - Average sunshine in February:
5h and 1min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 5min - Average sunshine in December:
4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days
Tennant, IA
- Average sunshine days in January:
20.1 days - Average sunshine days in February:
17.8 days - Average sunshine days in March:
17.9 days - Average sunshine days in April:
15 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
12.7 days - Average sunshine days in August:
15.5 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
21.3 days - Average sunshine days in December:
21.6 days
The month with the most sunshine days is December (21.6 days).
The month with the least sunshine days is June (11.4 days).
Average UV index
Tennant, IA
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover
Tennant, IA
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility
Tennant, IA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Tennant, Iowa, USA
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