Climate and monthly weather forecastDewey, OK
Climate and monthly weather forecast
Weather in January
January, like December, is a frosty winter month in Dewey, Oklahoma, with an average temperature ranging between min 29.3°F (-1.5°C) and max 45.1°F (7.3°C). Dewey's temperature records reveal January as the coldest month, marked by average highs of 45.1°F (7.3°C) and lows of 29.3°F (-1.5°C). Weather in January »Weather in February
February, the last month of the winter in Dewey, is another chilly month, with an average temperature varying between 32.2°F (0.1°C) and 48.6°F (9.2°C). Dewey observes an average high-temperature of a still chilly 48.6°F (9.2°C) in February, barely different from 45.1°F (7.3°C) in January. Weather in February »Weather in March
March, the first month of the spring in Dewey, is a moderate month, with temperature in the range of an average low of 42.4°F (5.8°C) and an average high of 59.9°F (15.5°C). March's arrival signals an increase in average high-temperatures, moving from February's frosty 48.6°F (9.2°C) to a moderate 59.9°F (15.5°C). Weather in March »Weather in April
April is a pleasant spring month in Dewey, Oklahoma, with an average temperature ranging between min 49.5°F (9.7°C) and max 68.2°F (20.1°C). In Dewey, the average high-temperature in April slightly increases from a refreshing 59.9°F (15.5°C) in March to an agreeable 68.2°F (20.1°C). Weather in April »Weather in May
The last month of the spring, May, is a warm month in Dewey, Oklahoma, with an average temperature ranging between max 75.2°F (24°C) and min 58.3°F (14.6°C). The onset of May marks a slight increase in the average high-temperature, moving from a pleasant 68.2°F (20.1°C) in April to a moderately hot 75.2°F (24°C). Weather in May »Weather in June
June, the first month of the summer in Dewey, is still a warm month, with temperature in the range of an average low of 68.5°F (20.3°C) and an average high of 85.6°F (29.8°C). With the arrival of June, the average high-temperature transitions from 75.2°F (24°C) in May to a still warm 85.6°F (29.8°C). Weather in June »Weather in July
July in Dewey, Oklahoma, is a hot summer month, with an average temperature fluctuating between 90.5°F (32.5°C) and 71.2°F (21.8°C). July, known for its average high temperature of 90.5°F (32.5°C) and an average low temperature of 71.2°F (21.8°C), is the warmest month. In July, the heat index is appraised at an extremely hot 107.6°F (42°C). Weather in July »Weather in August
The last month of the summer, August, is another hot month in Dewey, Oklahoma, with an average temperature ranging between min 68.9°F (20.5°C) and max 88.9°F (31.6°C). Dewey records a slight change with August's average high-temperatures adjusting to a still tropical 88.9°F (31.6°C) from July's 90.5°F (32.5°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Dewey, Oklahoma, with temperature in the range of an average low of 62.8°F (17.1°C) and an average high of 82°F (27.8°C). The start of September involves a subtle temperature drop, shifting from a hot 88.9°F (31.6°C) in August to a warm 82°F (27.8°C). Weather in September »Weather in October
October, the same as September, in Dewey, Oklahoma, is an agreeable autumn month, with an average temperature fluctuating between 51.4°F (10.8°C) and 69.1°F (20.6°C). Stepping into October, Dewey observes a temperature decline, with the average high falling from September's moderately hot 82°F (27.8°C) to an agreeable 69.1°F (20.6°C). Weather in October »Weather in November
The last month of the autumn, November, is another mild month in Dewey, Oklahoma, with an average temperature ranging between max 57.7°F (14.3°C) and min 40.8°F (4.9°C). In Dewey, the average high-temperature in November decreases from a pleasant 69.1°F (20.6°C) in October to a mild 57.7°F (14.3°C). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Dewey, Oklahoma, with an average temperature varying between 32.2°F (0.1°C) and 47.3°F (8.5°C). The arrival of December corresponds with a reduction in the average high-temperature, down from November's moderate 57.7°F (14.3°C) to a frosty 47.3°F (8.5°C). Weather in December »Updated: Jun 4, 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
Dewey records the coldest temperatures in January, averaging a high of 45.1°F (7.3°C) and a low of 29.3°F (-1.5°C).
January, October and November, with an average relative humidity of 68%, are the least humid months.
Throughout the year, there are 131.6 rainfall days, and 29.06" (738mm) of precipitation is accumulated.
Months with snowfall in Dewey are January through March, November and December.
Throughout the year, there are 7.2 snowfall days, and 3.11" (79mm) of snow is accumulated.
January and December, with an average of 5.8h of sunshine, are months with the least sunshine.
January and December, with an average maximum UV index of 2, are months with the lowest UV index.
The month with the most snowfall is February, when snow falls for 2.4 days and typically aggregates up to 1.34" (34mm) 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 Dewey, snow does not fall in April through October.
May is the most humid month, with an average relative humidity of 80%.
May is the month with the most rainfall. Rain falls for 15.6 days and accumulates 5.08" (129mm) of precipitation.
The month with the longest days is June, with an average of 14h and 36min of daylight.
The months with the highest UV index are June and July, with an average maximum UV index of 7.
July is the month when Dewey sees the average highest temperatures, with a high of 90.5°F (32.5°C) and a low of 71.2°F (21.8°C).
With an average of 10.9h of sunshine, July has the most sunshine of the year.
November is the month with the least rainfall. Rain falls for 7.7 days and accumulates 1.02" (26mm) of precipitation.
With an average of 9h and 42min of daylight, December has the shortest days of the year.
Average temperature
Dewey, OK
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (45.1°F).
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).
Average pressure
Dewey, OK
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.91"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.1"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 (29.89"Hg).
Average wind speed
Dewey, OK
- Average wind speed in January:
9.8mph - Average wind speed in February:
10.2mph - Average wind speed in March:
10.9mph - Average wind speed in April:
10.7mph - Average wind speed in May:
9.1mph - Average wind speed in June:
8.5mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7.2mph - Average wind speed in September:
7.8mph - Average wind speed in October:
9.1mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.2mph
The windiest month (with the highest average wind speed) is March (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity
Dewey, OK
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, October and November (68%).
Average rainfall
Dewey, OK
- Average rainfall in January:
1.1" - Average rainfall in February:
1.18" - Average rainfall in March:
2.17" - Average rainfall in April:
2.99" - Average rainfall in May:
5.08" - Average rainfall in June:
1.97"
The wettest month (with the highest rainfall) is May (5.08").
The driest month (with the least rainfall) is November (1.02").
Average rainfall days
Dewey, OK
- Average rainfall days in January:
5.8 days - Average rainfall days in February:
7.6 days - Average rainfall days in March:
11.8 days - Average rainfall days in April:
14.7 days - Average rainfall days in May:
15.6 days - Average rainfall days in June:
11.9 days
- Average rainfall days in July:
13.4 days - Average rainfall days in August:
13.7 days - Average rainfall days in September:
12 days - Average rainfall days in October:
11.3 days - Average rainfall days in November:
7.7 days - Average rainfall days in December:
6.1 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (5.8 days).
Average snowfall
Dewey, OK
The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Dewey, OK
- Average snowfall days in January:
2.2 days - Average snowfall days in February:
2.4 days - Average snowfall days in March:
0.7 days - Average snowfall days in April:
0 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 days - Average snowfall days in November:
0.4 days - Average snowfall days in December:
1.5 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Dewey, 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 48min - Average sunshine in February:
6h and 30min - Average sunshine in March:
7h and 0min - Average sunshine in April:
8h and 18min - Average sunshine in May:
8h and 42min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 54min - Average sunshine in August:
10h and 48min - Average sunshine in September:
8h and 54min - Average sunshine in October:
6h and 30min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 48min).
Average sunshine days
Dewey, OK
- Average sunshine days in January:
22.5 days - Average sunshine days in February:
17.3 days - Average sunshine days in March:
16.1 days - Average sunshine days in April:
13.9 days - Average sunshine days in May:
13.3 days - Average sunshine days in June:
15.4 days
- Average sunshine days in July:
15.4 days - Average sunshine days in August:
15.1 days - Average sunshine days in September:
15.9 days - Average sunshine days in October:
17.9 days - Average sunshine days in November:
21.1 days - Average sunshine days in December:
22.2 days
The month with the most sunshine days is January (22.5 days).
The month with the least sunshine days is May (13.3 days).
Average UV index
Dewey, 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
Dewey, OK
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility
Dewey, 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).
