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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, is a cool winter month in Foster, Oklahoma, with an average temperature ranging between max 50.2°F (10.1°C) and min 33.4°F (0.8°C). Temperature records mark January as the coldest month, with highs averaging 50.2°F (10.1°C) and lows at 33.4°F (0.8°C). Weather in January »
Weather in February
The last month of the winter, February, is also a fresh month in Foster, Oklahoma, with an average temperature ranging between min 36.1°F (2.3°C) and max 53.4°F (11.9°C). The onset of February notes an average high-temperature of a still fresh 53.4°F (11.9°C), subtly shifted from January's 50.2°F (10.1°C). Weather in February »
Weather in March
The first month of the spring, March, is a refreshing month in Foster, Oklahoma, with temperature in the range of an average high of 64°F (17.8°C) and an average low of 45.7°F (7.6°C). As March sets, the average high-temperature shows an increase, moving up from a fresh 53.4°F (11.9°C) in February to an enjoyable 64°F (17.8°C). Weather in March »
Weather in April
April in Foster, Oklahoma, is an agreeable spring month, with an average temperature varying between 52.3°F (11.3°C) and 71.4°F (21.9°C). In Foster, the onset of April comes with a modest high-temperature shift, transitioning from March's enjoyable 64°F (17.8°C) to an agreeable 71.4°F (21.9°C). Weather in April »
Weather in May
The last month of the spring, May, is a warm month in Foster, Oklahoma, with temperature in the range of an average low of 60.3°F (15.7°C) and an average high of 78.4°F (25.8°C). May's onset is marked by a subtle temperature increase, moving from a pleasant 71.4°F (21.9°C) in April to a moderately hot 78.4°F (25.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a hot month in Foster, Oklahoma, with temperature in the range of an average high of 88.3°F (31.3°C) and an average low of 70.3°F (21.3°C). Foster's transition into June sees a rise in the average high-temperature, advancing from a warm 78.4°F (25.8°C) in May to a hot 88.3°F (31.3°C). Weather in June »
Weather in July
July, like June, is another hot summer month in Foster, Oklahoma, with an average temperature varying between 93.9°F (34.4°C) and 73.2°F (22.9°C). Foster's highest average temperatures are recorded in July and August, reaching a high of 93.9°F (34.4°C). Throughout July, the heat index is evaluated at a blistering 111.2°F (44°C). Weather in July »
Weather in August
The last month of the summer, August, is another hot month in Foster, Oklahoma, with an average temperature varying between 72.5°F (22.5°C) and 93.9°F (34.4°C). July and August are the warmest months, with an average high-temperature of 93.9°F (34.4°C). August's heat index is evaluated at a blisteringly hot 107.6°F (42°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Foster, Oklahoma, with an average temperature varying between 84.9°F (29.4°C) and 66°F (18.9°C). In Foster, the average high-temperature in September decreases from a tropical 93.9°F (34.4°C) in August to a warm 84.9°F (29.4°C). Weather in September »
Weather in October
October, the same as September, in Foster, Oklahoma, is an agreeable autumn month, with an average temperature varying between 53.8°F (12.1°C) and 72.1°F (22.3°C). October's arrival correlates with a reduction in the average high-temperature, down from a moderately hot 84.9°F (29.4°C) in September to a pleasant 72.1°F (22.3°C). Weather in October »
Weather in November
November, the last month of the autumn in Foster, is another comfortable month, with an average temperature fluctuating between 60.8°F (16°C) and 43.3°F (6.3°C). Welcoming November, Foster observes a shift in the average high-temperature, falling from October's agreeable 72.1°F (22.3°C) to a refreshing 60.8°F (16°C). Weather in November »
Weather in December
December, the first month of the winter in Foster, is still a cool month, with an average temperature fluctuating between 34.9°F (1.6°C) and 50.7°F (10.4°C). Foster in December experiences a subtle temperature decline, with average high-temperatures reducing from an enjoyable 60.8°F (16°C) in November to a cool 50.7°F (10.4°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
What is the coldest time of year?
Foster experiences its lowest temperatures in January, with an average peak of 50.2°F (10.1°C) and a low of 33.4°F (0.8°C).
How much does it rain?
Throughout the year, there are 119.9 rainfall days, and 24.65" (626mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, November and December.
How much does it snow?
Throughout the year, there are 5.2 snowfall days, and 3.11" (79mm) of snow is accumulated.
What is the driest month in Foster?
February and November are months with the least rain when the rain falls for 7 days and typically aggregates up to 1.06" (27mm) of rain.
What is the snowiest month?
February is the month with the most snowfall. Snow falls for 2 days and accumulates 1.46" (37mm) of snow.
When is Daylight Saving Time (DST)?
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.
What is the most humid month?
The most humid month in Foster is May, with an average relative humidity of 75%.
What is the rainiest month?
May is the month with the most rainfall. Rain falls for 14.4 days and accumulates 3.94" (100mm) of precipitation.
When it does not snow?
In Foster, snow does not fall in May through October.
When are the longest days?
With an average of 14h and 24min of daylight, June has the longest days of the year.
What is the month with the highest UV index?
June through August, with an average maximum UV index of 7, are months with the highest UV index.
What are the warmest months?
Foster witnesses its average highest temperatures during July and August, peaking at 93.9°F (34.4°C).
What month has the most sunshine?
July has the most sunshine of the year, with an average of 11.2h of sunshine.
What is the least humid month?
August is the least humid month in Foster, with an average relative humidity of 58%.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 54min of daylight.
What is the month with the least sunshine?
December has the least sunshine of the year, with an average of 6.1h of sunshine.
When is the lowest UV index?
With an average maximum UV index of 2, December is the month with the lowest UV index.
Average temperature
Foster, OK
The warmest months (with the highest average high temperature) are July and August (93.9°F).
The month with the lowest average high temperature is January (50.2°F).
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure
Foster, OK
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.9"Hg - Average pressure in May:
29.9"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.01"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 (29.88"Hg).
Average wind speed
Foster, OK
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.9mph - Average wind speed in March:
11.5mph - Average wind speed in April:
11.6mph - Average wind speed in May:
10.3mph - Average wind speed in June:
9.4mph
- Average wind speed in July:
8.1mph - Average wind speed in August:
8.1mph - Average wind speed in September:
8.3mph - Average wind speed in October:
9.6mph - Average wind speed in November:
10.4mph - Average wind speed in December:
9.8mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).
Average humidity
Foster, OK
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (58%).
Average rainfall
Foster, OK
- Average rainfall in January:
1.3" - Average rainfall in February:
1.06" - Average rainfall in March:
1.81" - Average rainfall in April:
2.8" - Average rainfall in May:
3.94" - Average rainfall in June:
2.13"
- Average rainfall in July:
2.2" - Average rainfall in August:
1.93" - Average rainfall in September:
2.56" - Average rainfall in October:
2.64" - Average rainfall in November:
1.06" - Average rainfall in December:
1.22"
The wettest month (with the highest rainfall) is May (3.94").
The driest months (with the least rainfall) are February and November (1.06").
Average rainfall days
Foster, OK
- Average rainfall days in January:
5.2 days - Average rainfall days in February:
7 days - Average rainfall days in March:
11 days - Average rainfall days in April:
12.8 days - Average rainfall days in May:
14.4 days - Average rainfall days in June:
10.6 days
- Average rainfall days in July:
11.7 days - Average rainfall days in August:
11.4 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
9.9 days - Average rainfall days in November:
7.5 days - Average rainfall days in December:
6.3 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is January (5.2 days).
Average snowfall
Foster, OK
The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Foster, OK
- Average snowfall days in January:
1.3 days - Average snowfall days in February:
2 days - Average snowfall days in March:
0.5 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 days - Average snowfall days in November:
0.3 days - Average snowfall days in December:
1 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Foster, OK
- Average daylight in January:
10h and 1min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 2min
- Average daylight in July:
14h and 1min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 2min - Average daylight in December:
9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
6h and 1min - Average sunshine in February:
7h and 2min - Average sunshine in March:
7h and 2min - Average sunshine in April:
8h and 3min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 5min
- Average sunshine in July:
11h and 1min - Average sunshine in August:
11h and 0min - Average sunshine in September:
8h and 3min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 2min - Average sunshine in December:
6h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days
Foster, OK
- Average sunshine days in January:
24 days - Average sunshine days in February:
18.6 days - Average sunshine days in March:
16.7 days - Average sunshine days in April:
15.6 days - Average sunshine days in May:
14.1 days - Average sunshine days in June:
17.4 days
- Average sunshine days in July:
17.4 days - Average sunshine days in August:
16.5 days - Average sunshine days in September:
15.3 days - Average sunshine days in October:
19.6 days - Average sunshine days in November:
20.7 days - Average sunshine days in December:
23 days
The month with the most sunshine days is January (24 days).
The month with the least sunshine days is May (14.1 days).
Average UV index
Foster, OK
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover
Foster, OK
The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility
Foster, 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).
Foster, Oklahoma, USA
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