Climate and monthly weather forecastDeep River, IA
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Deep River, Iowa, with an average temperature varying between 27.1°F (-2.7°C) and 14.7°F (-9.6°C). January, recording an average high temperature of 27.1°F (-2.7°C) and a low temperature of 14.7°F (-9.6°C), is Deep River's coldest month. Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Deep River, Iowa, with an average temperature varying between 31.5°F (-0.3°C) and 17.8°F (-7.9°C). February welcomes an average high-temperature of a still freezing cold 31.5°F (-0.3°C), not much different from the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Deep River, Iowa, with an average temperature varying between 31.6°F (-0.2°C) and 46°F (7.8°C). March's onset brings a clear escalation in the average high-temperature, soaring from a freezing cold 31.5°F (-0.3°C) in February to a frosty 46°F (7.8°C). Weather in March »Weather in April
April in Deep River, Iowa, is a moderate spring month, with an average temperature ranging between min 41.9°F (5.5°C) and max 58.6°F (14.8°C). As March transitions into April, Deep River sees a rise in the average high-temperature, moving from a chilly 46°F (7.8°C) to a mild 58.6°F (14.8°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Deep River, Iowa, with temperature in the range of an average low of 52.3°F (11.3°C) and an average high of 69.3°F (20.7°C). May's onset is marked by a temperature increase, moving from a mild 58.6°F (14.8°C) in April to an agreeable 69.3°F (20.7°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Deep River, Iowa, with an average temperature ranging between max 78.6°F (25.9°C) and min 62.2°F (16.8°C). With the arrival of June, the average high-temperature transitions from an agreeable 69.3°F (20.7°C) in May to a warm 78.6°F (25.9°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Deep River, Iowa, with an average temperature ranging between min 64.8°F (18.2°C) and max 81.1°F (27.3°C). July, known for its average high temperature of 81.1°F (27.3°C) and an average low temperature of 64.8°F (18.2°C), is the warmest month. In July, the average heat index is evaluated at a hot 87.8°F (31°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Deep River, Iowa, with an average temperature varying between 80.4°F (26.9°C) and 62.2°F (16.8°C). August's beginning signals an average high-temperature of a still warm 80.4°F (26.9°C), barely different from July's 81.1°F (27.3°C). Weather in August »Weather in September
September, the first month of the autumn in Deep River, is still a warm month, with an average temperature fluctuating between 55.6°F (13.1°C) and 74.7°F (23.7°C). Deep River records a mild change in average high-temperature during September, easing from a warm 80.4°F (26.9°C) in August to a still moderately hot 74.7°F (23.7°C). Weather in September »Weather in October
October, the same as September, in Deep River, Iowa, is a moderate autumn month, with an average temperature fluctuating between 44.4°F (6.9°C) and 60.1°F (15.6°C). A notable decrease in the average high-temperature is observed during October, falling from a warm 74.7°F (23.7°C) in September to a mild 60.1°F (15.6°C). Weather in October »Weather in November
November, the last month of the autumn in Deep River, is also a frosty month, with an average temperature fluctuating between 32.5°F (0.3°C) and 46.8°F (8.2°C). The arrival of November indicates a decrease in the average high-temperature, moving from a moderate 60.1°F (15.6°C) in October to a frosty 46.8°F (8.2°C). Weather in November »Weather in December
December, the first month of the winter in Deep River, is still a cold month, with an average temperature ranging between min 22.3°F (-5.4°C) and max 33.6°F (0.9°C). In Deep River, the average high-temperature in December drops from a frosty 46.8°F (8.2°C) in November to a wintry 33.6°F (0.9°C). 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
January brings the lowest temperatures, with an average high of 27.1°F (-2.7°C) and an average low of 14.7°F (-9.6°C).
January and July, with an average relative humidity of 84%, are most humid months.
The month with the least rainfall is January, when the rain falls for 5.2 days and typically collects 1.18" (30mm) of precipitation.
In Deep River, during the entire year, the rain falls for 145.5 days and collects up to 30.39" (772mm) of precipitation.
January through May, October through December are months with snowfall.
In Deep River, during the entire year, snow falls for 39 days and aggregates up to 16.65" (423mm) of snow.
The month with the least sunshine is January, with an average of 4.1h of sunshine.
With an average maximum UV index of 1, January is the month with the lowest UV index in Deep River, Iowa.
February is the month with the most snowfall. Snow falls for 9.8 days and accumulates 5.24" (133mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Deep River, 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.
The month with the most rainfall is May, when the rain falls for 18.8 days and typically aggregates up to 4.57" (116mm) of precipitation.
In Deep River, snow does not fall in June through September.
With an average of 15h and 6min of daylight, June has the longest days of the year in Deep River, Iowa.
The months with the highest UV index in Deep River, Iowa, are June and July, with an average maximum UV index of 6.
Deep River, Iowa, registers the average highest temperatures during July, with peaks of 81.1°F (27.3°C) and lows of 64.8°F (18.2°C).
The month with the most sunshine is July, with an average of 10.1h of sunshine.
With an average relative humidity of 72%, October is the least humid month in Deep River, Iowa.
The month with the shortest days in Deep River, Iowa, is December, with an average of 9h and 12min of daylight.
Average temperature
Deep River, IA
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (27.1°F).
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).
Average pressure
Deep River, 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:
29.89"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:
30.09"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 (29.89"Hg).
Average wind speed
Deep River, IA
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.5mph - Average wind speed in March:
10.5mph - Average wind speed in April:
10.7mph - Average wind speed in May:
9.1mph - Average wind speed in June:
8mph
- Average wind speed in July:
7mph - Average wind speed in August:
7mph - Average wind speed in September:
8mph - Average wind speed in October:
9.7mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.1mph
The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity
Deep River, IA
The months with the highest relative humidity are January and July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Deep River, IA
- Average rainfall in January:
1.18" - Average rainfall in February:
1.3" - Average rainfall in March:
2.09" - Average rainfall in April:
3.15" - Average rainfall in May:
4.57" - Average rainfall in June:
4.41"
- Average rainfall in July:
3.11" - Average rainfall in August:
2.52" - Average rainfall in September:
2.8" - Average rainfall in October:
2.24" - Average rainfall in November:
1.57" - Average rainfall in December:
1.46"
The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days
Deep River, IA
- Average rainfall days in January:
5.2 days - Average rainfall days in February:
5 days - Average rainfall days in March:
11.7 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
18.8 days - Average rainfall days in June:
18.9 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
11.3 days - Average rainfall days in November:
8.6 days - Average rainfall days in December:
7.3 days
The month with the highest number of rainy days is June (18.9 days).
The month with the least rainy days is February (5 days).
Average snowfall
Deep River, IA
- Average snowfall in January:
4.96" - Average snowfall in February:
5.24" - Average snowfall in March:
2.09" - Average snowfall in April:
0.79" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Deep River, IA
- Average snowfall days in January:
10.6 days - Average snowfall days in February:
9.8 days - Average snowfall days in March:
6 days - Average snowfall days in April:
1.7 days - Average snowfall days in May:
0.2 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:
0.6 days - Average snowfall days in November:
2.6 days - Average snowfall days in December:
7.5 days
The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Deep River, IA
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 12min
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 6min - Average sunshine in February:
4h and 18min - Average sunshine in March:
6h and 18min - Average sunshine in April:
7h and 48min - Average sunshine in May:
8h and 36min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
10h and 0min - Average sunshine in September:
9h and 24min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 36min
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
Deep River, IA
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
14.7 days - Average sunshine days in April:
11.5 days - Average sunshine days in May:
9.6 days - Average sunshine days in June:
8.3 days
- Average sunshine days in July:
9.8 days - Average sunshine days in August:
13.4 days - Average sunshine days in September:
15.7 days - Average sunshine days in October:
17.9 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
18.1 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (8.3 days).
Average UV index
Deep River, IA
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Deep River, IA
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility
Deep River, IA
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
