Expand
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 Dewar, Iowa, with temperature in the range of an average low of 12°F (-11.1°C) and an average high of 24.3°F (-4.3°C). January stands out as Dewar's coldest month, with an average high-temperature of 24.3°F (-4.3°C) and a low-temperature of 12°F (-11.1°C). Weather in January »
Weather in February
February, the last month of the winter in Dewar, is also a subzero cold month, with an average temperature varying between 28.4°F (-2°C) and 15.4°F (-9.2°C). Dewar ushers in February with an average high-temperature of a still subzero cold 28.4°F (-2°C), showing a close resemblance to the previous month. Weather in February »
Weather in March
March, the first month of the spring in Dewar, is a frosty month, with temperature in the range of an average low of 29.7°F (-1.3°C) and an average high of 44.1°F (6.7°C). March's onset witnesses a marked shift in the average high-temperature, moving from a subzero cold 28.4°F (-2°C) in February to a chilly 44.1°F (6.7°C). Weather in March »
Weather in April
April is a refreshing spring month in Dewar, Iowa, with temperature in the range of an average high of 56.8°F (13.8°C) and an average low of 40.1°F (4.5°C). Dewar sees an increase in the average high-temperature with the arrival of April, moving from March's frosty 44.1°F (6.7°C) to a mild 56.8°F (13.8°C). Weather in April »
Weather in May
May, the last month of the spring in Dewar, is a pleasant month, with an average temperature fluctuating between 51.6°F (10.9°C) and 68.2°F (20.1°C). As Dewar, Iowa, enters May, the average high-temperature increases from the a moderate 56.8°F (13.8°C) of April to a pleasant 68.2°F (20.1°C). Weather in May »
Weather in June
June, the first month of the summer in Dewar, is a moderately hot month, with an average temperature ranging between max 77.7°F (25.4°C) and min 61.3°F (16.3°C). June sees a temperature increase, moving from a pleasant 68.2°F (20.1°C) in May to a moderately hot 77.7°F (25.4°C). Weather in June »
Weather in July
July, like June, in Dewar, Iowa, is a moderately hot summer month, with temperature in the range of an average high of 80.1°F (26.7°C) and an average low of 63.1°F (17.3°C). July stands out as Dewar's warmest month, with an average high-temperature of 80.1°F (26.7°C) and a low-temperature of 63.1°F (17.3°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Dewar, Iowa, with an average temperature varying between 61°F (16.1°C) and 78.6°F (25.9°C). August's weather displays an average high-temperature of a still warm 78.6°F (25.9°C), slightly varied from July's 80.1°F (26.7°C). Weather in August »
Weather in September
September, the first month of the autumn in Dewar, is still a pleasant month, with an average temperature ranging between min 54.5°F (12.5°C) and max 73.2°F (22.9°C). The commencement of September indicates a gentle shift in the average high-temperature, receding from August's moderately hot 78.6°F (25.9°C) to an agreeable 73.2°F (22.9°C). Weather in September »
Weather in October
October, like September, is another mild autumn month in Dewar, Iowa, with an average temperature varying between 43.5°F (6.4°C) and 58.5°F (14.7°C). Dewar witnesses a significant decrease in the average high-temperature with the arrival of October, falling from September's agreeable 73.2°F (22.9°C) to a moderate 58.5°F (14.7°C). Weather in October »
Weather in November
November, the last month of the autumn in Dewar, is also a frosty month, with an average temperature fluctuating between 44.1°F (6.7°C) and 31.1°F (-0.5°C). Dewar's average high-temperature decreases in November, falling from a moderate 58.5°F (14.7°C) in October to a chilly 44.1°F (6.7°C). Weather in November »
Weather in December
The first month of the winter, December, is also a subzero cold month in Dewar, Iowa, with an average temperature ranging between max 31.1°F (-0.5°C) and min 20.5°F (-6.4°C). With December's onset, the average high-temperature recedes from November's chilly 44.1°F (6.7°C) to a subzero cold 31.1°F (-0.5°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Dewar?
January stands out as Dewar's coldest month, with temperatures ranging between an average high of 24.3°F (-4.3°C) and a low of 12°F (-11.1°C).
What is the most humid month in Dewar?
The most humid month in Dewar, Iowa, is January, with an average relative humidity of 87%.
What is the driest month in Dewar?
January and February are months with the least rain in Dewar when the rain falls for 4.1 days and typically aggregates up to 1.02" (26mm) of rain.
How many days does it rain in Dewar?
Throughout the year, in Dewar, there are 133.6 rainfall days, and 28.27" (718mm) of precipitation is accumulated.
When does it snow in Dewar?
Months with snowfall are January through May, October through December.
When does it snow the most in Dewar?
January is the month with the most snowfall. Snow falls for 11.5 days and accumulates 4.21" (107mm) of snow.
How much does it snow in Dewar?
In Dewar, during the entire year, snow falls for 41.6 days and aggregates up to 15.24" (387mm) of snow.
What is the month with the least sunshine in Dewar?
With an average of 3.8h of sunshine, January has the least sunshine of the year.
When is Daylight Saving Time (DST) in Dewar?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Dewar, 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 Dewar?
The month with the most rainfall in Dewar is June, when the rain falls for 18.1 days and typically aggregates up to 4.29" (109mm) of precipitation.
When it does not snow in Dewar?
In Dewar, Iowa, snow does not fall in June through September.
When are the longest days in Dewar?
With an average of 15h and 18min of daylight, June has the longest days of the year in Dewar.
When is the highest UV index in Dewar?
June is the month with the highest UV index in Dewar, with an average maximum UV index of 6.
What is the hottest time of year in Dewar?
July proves to be the warmest month in Dewar, recording an average peak temperature of 80.1°F (26.7°C) and a minimum temperature of 63.1°F (17.3°C).
What month has the most sunshine in Dewar?
With an average of 9.9h of sunshine, July has the most sunshine of the year.
What is the least humid month in Dewar?
October is the least humid month in Dewar, Iowa, with an average relative humidity of 72%.
What is the month with the shortest days in Dewar?
The month with the shortest days in Dewar is December, with an average of 9h and 6min of daylight.
What is the month with the lowest UV index in Dewar?
The month with the lowest UV index in Dewar, Iowa, is December, with an average maximum UV index of 1.
Average temperature
Dewar, IA
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (24.3°F).
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure
Dewar, IA
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.08"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"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Dewar, IA
- Average wind speed in January:
10.5mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.8mph - Average wind speed in May:
9.3mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7mph - Average wind speed in September:
8.2mph - Average wind speed in October:
9.8mph - 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 (10.8mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity
Dewar, IA
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Dewar, IA
- Average rainfall in January:
1.02" - Average rainfall in February:
1.02" - Average rainfall in March:
1.73" - Average rainfall in April:
3.19" - Average rainfall in May:
4.21" - Average rainfall in June:
4.29"
- Average rainfall in July:
2.95" - Average rainfall in August:
1.97" - Average rainfall in September:
2.48" - Average rainfall in October:
2.52" - Average rainfall in November:
1.54" - Average rainfall in December:
1.34"
The wettest month (with the highest rainfall) is June (4.29").
The driest months (with the least rainfall) are January and February (1.02").
Average rainfall days
Dewar, IA
- Average rainfall days in January:
4.1 days - Average rainfall days in February:
4 days - Average rainfall days in March:
10.1 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
18.1 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
13.3 days - Average rainfall days in September:
11.2 days - Average rainfall days in October:
11.1 days - Average rainfall days in November:
8.9 days - Average rainfall days in December:
5.8 days
The month with the highest number of rainy days is June (18.1 days).
The month with the least rainy days is February (4 days).
Average snowfall
Dewar, IA
- Average snowfall in January:
4.21" - Average snowfall in February:
4.17" - Average snowfall in March:
1.61" - Average snowfall in April:
0.75" - Average snowfall in May:
0.2" - Average snowfall in June:
0"
The month with the highest snowfall is January (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Dewar, IA
- Average snowfall days in January:
11.5 days - Average snowfall days in February:
9.9 days - Average snowfall days in March:
5.2 days - Average snowfall days in April:
1.8 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:
3.3 days - Average snowfall days in December:
8.9 days
The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Dewar, IA
- Average daylight in January:
9h and 3min - 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 4min - Average daylight in June:
15h and 2min
- 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 0min - 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 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 3min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 4min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 2min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Dewar, IA
- Average sunshine days in January:
16.1 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
15.1 days - Average sunshine days in April:
12.4 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
10 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
17.8 days - Average sunshine days in November:
17.6 days - Average sunshine days in December:
17.7 days
The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is June (10 days).
Average UV index
Dewar, IA
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Dewar, IA
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility
Dewar, IA
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Dewar, Iowa, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location
