Climate and monthly weather forecastChelsea, OK
Climate and monthly weather forecast
Weather in January
January, the same as December, in Chelsea, Oklahoma, is a frosty winter month, with an average temperature ranging between max 45°F (7.2°C) and min 29.7°F (-1.3°C). January is the coldest month, exhibiting average temperatures of 45°F (7.2°C) at the peak and 29.7°F (-1.3°C) at the base. Weather in January »Weather in February
The last month of the winter, February, is another chilly month in Chelsea, Oklahoma, with an average temperature fluctuating between 48.7°F (9.3°C) and 32.7°F (0.4°C). The commencement of February introduces an average high-temperature of a still chilly 48.7°F (9.3°C), closely mirroring the preceding month. Weather in February »Weather in March
March, the first month of the spring in Chelsea, is a refreshing month, with an average temperature ranging between max 59.9°F (15.5°C) and min 42.4°F (5.8°C). A rise in the average high-temperature is observed during March, moving from a chilly 48.7°F (9.3°C) in February to a mild 59.9°F (15.5°C). Weather in March »Weather in April
April is a pleasant spring month in Chelsea, Oklahoma, with an average temperature varying between 49.6°F (9.8°C) and 68.2°F (20.1°C). As Chelsea transitions into April, a marginal rise in the average high-temperature is observed, moving from a mild 59.9°F (15.5°C) in March to a pleasant 68.2°F (20.1°C). Weather in April »Weather in May
May, the last month of the spring in Chelsea, is a warm month, with an average temperature varying between 75.4°F (24.1°C) and 58.6°F (14.8°C). May sees a marginal temperature increase, moving from a pleasant 68.2°F (20.1°C) in April to a moderately hot 75.4°F (24.1°C). Weather in May »Weather in June
June, the first month of the summer in Chelsea, is also a moderately hot month, with an average temperature fluctuating between 85.8°F (29.9°C) and 68.5°F (20.3°C). In Chelsea, the onset of June comes with an increased average high-temperature, moving from May's warm 75.4°F (24.1°C) to a still moderately hot 85.8°F (29.9°C). Weather in June »Weather in July
July is a hot summer month in Chelsea, Oklahoma, with an average temperature varying between 71.4°F (21.9°C) and 90.3°F (32.4°C). In Chelsea, temperatures reach their average annual highs in July, measuring 90.3°F (32.4°C) and a minimum average of 71.4°F (21.9°C). July's heat index is estimated at a scorching 107.6°F (42°C). Weather in July »Weather in August
August, the last month of the summer in Chelsea, is another hot month, with temperature in the range of an average low of 69.1°F (20.6°C) and an average high of 89.2°F (31.8°C). The transition into August reveals an average high-temperature of a still tropical 89.2°F (31.8°C), mirroring a close resemblance to July. Weather in August »Weather in September
September, the first month of the autumn in Chelsea, is still a warm month, with an average temperature varying between 82.2°F (27.9°C) and 63.1°F (17.3°C). September reveals a small adjustment in temperature, transitioning from an average high of a hot 89.2°F (31.8°C) in August to a warm 82.2°F (27.9°C). Weather in September »Weather in October
October, the same as September, in Chelsea, Oklahoma, is another pleasant autumn month, with an average temperature varying between 51.4°F (10.8°C) and 69.4°F (20.8°C). The commencement of October indicates a shift in the average high-temperature, receding from September's moderately hot 82.2°F (27.9°C) to a pleasant 69.4°F (20.8°C). Weather in October »Weather in November
The last month of the autumn, November, is another mild month in Chelsea, Oklahoma, with an average temperature ranging between min 41°F (5°C) and max 57.6°F (14.2°C). A shift in the average high-temperature occurs in November, reducing from an agreeable 69.4°F (20.8°C) in October to a mild 57.6°F (14.2°C). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Chelsea, Oklahoma, with an average temperature varying between 47.3°F (8.5°C) and 33.3°F (0.7°C). The move into December indicates a reduction in the average high-temperature, down from November's moderate 57.6°F (14.2°C) to a frosty 47.3°F (8.5°C). Weather in December »Updated: Aug 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
During the coldest month in Chelsea, January, temperatures average a high of 45°F (7.2°C) and a low of 29.7°F (-1.3°C).
In Chelsea, during the entire year, the rain falls for 125.4 days and collects up to 23.19" (589mm) of precipitation.
January through March, November and December are months with snowfall.
Throughout the year, there are 8.5 snowfall days, and 1.93" (49mm) of snow is accumulated.
The months with the lowest UV index are January and December, with an average maximum UV index of 2.
The month with the most snowfall is February, when snow falls for 2.6 days and typically aggregates up to 0.79" (20mm) of snow.
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.
In Chelsea, snow does not fall in April through October.
May is the most humid month in Chelsea, with an average relative humidity of 81%.
The month with the most rainfall in Chelsea is May, when the rain falls for 14.8 days and typically aggregates up to 4.06" (103mm) of precipitation.
The month with the longest days is June, with an average of 14h and 36min of daylight.
June and July, with an average maximum UV index of 7, are months with the highest UV index.
July, known for its average high temperature of 90.3°F (32.4°C) and an average low temperature of 71.4°F (21.9°C), is the warmest month.
With an average of 10.8h of sunshine, July has the most sunshine of the year.
October is the least humid month, with an average relative humidity of 68%.
The month with the least rainfall is November, when the rain falls for 6.4 days and typically collects 0.75" (19mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 42min of daylight.
December has the least sunshine of the year, with an average of 5.6h of sunshine.
Average temperature
Chelsea, OK
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (45°F).
The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure
Chelsea, OK
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Chelsea, OK
- Average wind speed in January:
9.9mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.9mph - Average wind speed in April:
10.8mph - Average wind speed in May:
9.1mph - Average wind speed in June:
8.4mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7.1mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.2mph - Average wind speed in November:
10.1mph - Average wind speed in December:
9.4mph
The windiest month (with the highest average wind speed) is March (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity
Chelsea, OK
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (68%).
Average rainfall
Chelsea, OK
- Average rainfall in January:
1.02" - Average rainfall in February:
0.91" - Average rainfall in March:
1.85" - Average rainfall in April:
2.13" - Average rainfall in May:
4.06" - Average rainfall in June:
1.61"
- Average rainfall in July:
2.4" - Average rainfall in August:
2.99" - Average rainfall in September:
2.52" - Average rainfall in October:
1.93" - Average rainfall in November:
0.75" - Average rainfall in December:
1.02"
The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is November (0.75").
Average rainfall days
Chelsea, OK
- Average rainfall days in January:
6.2 days - Average rainfall days in February:
7.4 days - Average rainfall days in March:
11.4 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
14.8 days - Average rainfall days in June:
11.8 days
- Average rainfall days in July:
13 days - Average rainfall days in August:
13.1 days - Average rainfall days in September:
9.7 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
6.4 days - Average rainfall days in December:
6.8 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (6.2 days).
Average snowfall
Chelsea, OK
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Chelsea, OK
- Average snowfall days in January:
2.8 days - Average snowfall days in February:
2.6 days - Average snowfall days in March:
0.8 days - Average snowfall days in April:
0.1 days - Average snowfall days in May:
0 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:
0.2 days - Average snowfall days in November:
0.4 days - Average snowfall days in December:
1.6 days
The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Chelsea, OK
- Average daylight in January:
10h and 0min - Average daylight in February:
10h and 54min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 6min - Average daylight in June:
14h and 36min
- Average daylight in July:
14h and 24min - Average daylight in August:
13h and 30min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 12min - Average daylight in December:
9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January:
5h and 42min - Average sunshine in February:
6h and 12min - Average sunshine in March:
6h and 42min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 36min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
10h and 48min - Average sunshine in August:
10h and 36min - Average sunshine in September:
9h and 0min - Average sunshine in October:
6h and 18min - Average sunshine in November:
5h and 54min - Average sunshine in December:
5h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days
Chelsea, OK
- Average sunshine days in January:
21.6 days - Average sunshine days in February:
17.7 days - Average sunshine days in March:
15.9 days - Average sunshine days in April:
13.5 days - Average sunshine days in May:
12.9 days - Average sunshine days in June:
14.8 days
- Average sunshine days in July:
15.4 days - Average sunshine days in August:
15.6 days - Average sunshine days in September:
17.7 days - Average sunshine days in October:
18.8 days - Average sunshine days in November:
21.9 days - Average sunshine days in December:
21 days
The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is May (12.9 days).
Average UV index
Chelsea, OK
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover
Chelsea, OK
The month with the most cloud cover is March (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility
Chelsea, OK
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).
