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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 Chelsea, Iowa, is another subzero cold winter month, with an average temperature ranging between min 13.5°F (-10.3°C) and max 25.9°F (-3.4°C). January brings the lowest temperatures, with an average high of 25.9°F (-3.4°C) and an average low of 13.5°F (-10.3°C). Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Chelsea, Iowa, with an average temperature varying between 17.1°F (-8.3°C) and 30.2°F (-1°C). The arrival of February records an average high-temperature of a still freezing cold 30.2°F (-1°C), closely related to the 25.9°F (-3.4°C) observed in January. Weather in February »
Weather in March
March, the first month of the spring in Chelsea, is a chilly month, with temperature in the range of an average low of 30.6°F (-0.8°C) and an average high of 45.1°F (7.3°C). March's arrival is marked by a notable elevation in high-temperatures, rising from a subzero cold 30.2°F (-1°C) in February to a chilly 45.1°F (7.3°C). Weather in March »
Weather in April
April is a mild spring month in Chelsea, Iowa, with an average temperature fluctuating between 41.4°F (5.2°C) and 57.7°F (14.3°C). Chelsea in April experiences an increase in the average high-temperature, moving from March's frosty 45.1°F (7.3°C) to a refreshing 57.7°F (14.3°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Chelsea, Iowa, with an average temperature varying between 52.2°F (11.2°C) and 68.7°F (20.4°C). May brings a rise in Chelsea's average high-temperature, moving from a mild 57.7°F (14.3°C) in April to a pleasant 68.7°F (20.4°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Chelsea, Iowa, with an average temperature ranging between max 78.1°F (25.6°C) and min 61.7°F (16.5°C). In Chelsea, stepping into June brings a temperature increase, moving up from May's pleasant 68.7°F (20.4°C) to a warm 78.1°F (25.6°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Chelsea, Iowa, with an average temperature ranging between min 64.4°F (18°C) and max 80.8°F (27.1°C). In Chelsea, the peak temperatures are generally noted in July, averaging a high of 80.8°F (27.1°C) and a low of 64.4°F (18°C). In July, the average heat index is evaluated at a hot 86°F (30°C). Weather in July »
Weather in August
August, the last month of the summer in Chelsea, is another warm month, with an average temperature varying between 61.9°F (16.6°C) and 79.5°F (26.4°C). August commences with an average high-temperature of a still warm 79.5°F (26.4°C), showing little deviation from July's 80.8°F (27.1°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Chelsea, Iowa, with an average temperature varying between 55°F (12.8°C) and 74.3°F (23.5°C). On the advent of September, Chelsea's average high-temperature exhibits a minor adjustment to a still warm 74.3°F (23.5°C) from August's 79.5°F (26.4°C). Weather in September »
Weather in October
October, the same as September, in Chelsea, Iowa, is another refreshing autumn month, with temperature in the range of an average low of 44.1°F (6.7°C) and an average high of 59.9°F (15.5°C). With the onset of October, Chelsea's average high-temperature experiences a noticeable drop, receding from September's warm 74.3°F (23.5°C) to a refreshing 59.9°F (15.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Chelsea, Iowa, with an average temperature fluctuating between 32.2°F (0.1°C) and 45.1°F (7.3°C). In November, the average high-temperature decreases considerably from a mild 59.9°F (15.5°C) in October to a frosty 45.1°F (7.3°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Chelsea, Iowa, with an average temperature fluctuating between 21.7°F (-5.7°C) and 32.7°F (0.4°C). Transition into December marks a drop in the average high-temperature, moving from a frosty 45.1°F (7.3°C) in November to a wintry 32.7°F (0.4°C). Weather in December »
[Resources]Frequently asked questions
What time of the year is the coldest in Chelsea?
The coldest month in Chelsea, Iowa, is January, with an average high-temperature of 25.9°F (-3.4°C) and an average low-temperature of 13.5°F (-10.3°C).
What is the most humid month in Chelsea?
The most humid month is January, with an average relative humidity of 85%.
What is the driest month in Chelsea?
January is the month with the least rainfall in Chelsea, Iowa. Rain falls for 4.5 days and accumulates 1.18" (30mm) of precipitation.
How much does it rain in Chelsea?
In Chelsea, Iowa, during the entire year, the rain falls for 139 days and collects up to 29.49" (749mm) of precipitation.
When does it snow in Chelsea?
January through May, October through December are months with snowfall.
When does it snow the most in Chelsea?
January is the month with the most snowfall. Snow falls for 9.6 days and accumulates 5.24" (133mm) of snow.
How many days does it snow in Chelsea?
In Chelsea, Iowa, during the entire year, snow falls for 39 days and aggregates up to 16.69" (424mm) of snow.
What is the month with the least sunshine in Chelsea?
With an average of 4h of sunshine, January has the least sunshine of the year.
When is the lowest UV index in Chelsea?
The months with the lowest UV index in Chelsea are January, February, October through December, with an average maximum UV index of 2.
When is Daylight Saving Time (DST) in Chelsea?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Chelsea, 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 in Chelsea?
The month with the most rainfall in Chelsea is May, when the rain falls for 18.1 days and typically aggregates up to 4.61" (117mm) of precipitation.
When it does not snow in Chelsea?
June through September are months without snowfall.
When are the longest days in Chelsea?
June has the longest days of the year, with an average of 15h and 12min of daylight.
What is the month with the highest UV index in Chelsea?
June is the month with the highest UV index in Chelsea, with an average maximum UV index of 6.
What are the warmest months in Chelsea?
With average high and low temperatures of 80.8°F (27.1°C) and 64.4°F (18°C) respectively, July is Chelsea's warmest month.
What month has the most sunshine in Chelsea?
July has the most sunshine of the year, with an average of 9.9h of sunshine.
What is the least humid month in Chelsea?
October is the least humid month, with an average relative humidity of 72%.
What is the month with the shortest days in Chelsea?
The month with the shortest days in Chelsea is December, with an average of 9h and 12min of daylight.
Average temperature
Chelsea, IA
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (25.9°F).
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure
Chelsea, 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:
30.09"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
Chelsea, 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:
10.8mph - Average wind speed in May:
9.2mph - 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:
8.1mph - Average wind speed in October:
9.8mph - Average wind speed in November:
10.5mph - 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
Chelsea, IA
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Chelsea, IA
- Average rainfall in January:
1.18" - Average rainfall in February:
1.26" - Average rainfall in March:
1.89" - Average rainfall in April:
3.23" - Average rainfall in May:
4.61" - Average rainfall in June:
4.13"
- Average rainfall in July:
3.19" - Average rainfall in August:
2.24" - Average rainfall in September:
2.52" - Average rainfall in October:
2.17" - Average rainfall in November:
1.57" - Average rainfall in December:
1.5"
The wettest month (with the highest rainfall) is May (4.61").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days
Chelsea, IA
- Average rainfall days in January:
4.5 days - Average rainfall days in February:
4.6 days - Average rainfall days in March:
10.8 days - Average rainfall days in April:
14.5 days - Average rainfall days in May:
18.1 days - Average rainfall days in June:
19.3 days
- Average rainfall days in July:
17.2 days - Average rainfall days in August:
13.3 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
10.1 days - Average rainfall days in November:
8.3 days - Average rainfall days in December:
6.4 days
The month with the highest number of rainy days is June (19.3 days).
The month with the least rainy days is January (4.5 days).
Average snowfall
Chelsea, IA
The month with the highest snowfall is January (5.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Chelsea, IA
- Average snowfall days in January:
9.6 days - Average snowfall days in February:
10.6 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
1.4 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:
2.8 days - Average snowfall days in December:
8.5 days
The month with the highest number of snowfall days is February (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Chelsea, 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 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 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
4h and 1min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 2min
- 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 2min - 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: 4h and 0min).
Average sunshine days
Chelsea, IA
- Average sunshine days in January:
18.2 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
15.2 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
10.6 days - Average sunshine days in June:
8.4 days
- Average sunshine days in July:
10.1 days - Average sunshine days in August:
15.1 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
19.2 days - Average sunshine days in November:
18.3 days - Average sunshine days in December:
18.2 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is June (8.4 days).
Average UV index
Chelsea, IA
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover
Chelsea, IA
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility
Chelsea, 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).
Chelsea, Iowa, USA
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