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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, like December, is another chilly winter month in Heyburn, Oklahoma, with temperature in the range of an average high of 46.9°F (8.3°C) and an average low of 31.5°F (-0.3°C). January stands out as Heyburn's coldest month, with an average high-temperature of 46.9°F (8.3°C) and a low-temperature of 31.5°F (-0.3°C). Weather in January »
Weather in February
The last month of the winter, February, is a cool month in Heyburn, Oklahoma, with an average temperature ranging between min 34.3°F (1.3°C) and max 50.5°F (10.3°C). February notes an average high-temperature of a cool 50.5°F (10.3°C), subtly differing from January's 46.9°F (8.3°C). Weather in February »
Weather in March
March, the first month of the spring in Heyburn, is a refreshing month, with an average temperature fluctuating between 44.1°F (6.7°C) and 61.3°F (16.3°C). An increase in the average high-temperature marks March, moving from February's cool 50.5°F (10.3°C) to an enjoyable 61.3°F (16.3°C). Weather in March »
Weather in April
April is a pleasant spring month in Heyburn, Oklahoma, with an average temperature ranging between min 50.9°F (10.5°C) and max 69.4°F (20.8°C). April showcases a minor temperature ascent, adjusting from March's comfortable 61.3°F (16.3°C) to a pleasant 69.4°F (20.8°C). Weather in April »
Weather in May
May, the last month of the spring in Heyburn, is a warm month, with temperature in the range of an average low of 59.4°F (15.2°C) and an average high of 75.7°F (24.3°C). Heyburn observes a slight uplift in the average high-temperature with the onset of May, adjusting from April's agreeable 69.4°F (20.8°C) to a moderately hot 75.7°F (24.3°C). Weather in May »
Weather in June
The first month of the summer, June, is a tropical month in Heyburn, Oklahoma, with an average temperature ranging between max 86.5°F (30.3°C) and min 69.1°F (20.6°C). The shift from May to June brings an increase in the average high-temperature, moving from a warm 75.7°F (24.3°C) to a hot 86.5°F (30.3°C). Weather in June »
Weather in July
July, like June, is a hot summer month in Heyburn, Oklahoma, with temperature in the range of an average low of 72.1°F (22.3°C) and an average high of 91.4°F (33°C). July is the month when Heyburn, Oklahoma, sees the highest average temperatures, with a high of 91.4°F (33°C) and a low of 72.1°F (22.3°C). The heat index value for July is evaluated at a blisteringly hot 109.4°F (43°C). Weather in July »
Weather in August
August, the last month of the summer in Heyburn, is also a hot month, with temperature in the range of an average low of 70.3°F (21.3°C) and an average high of 90.9°F (32.7°C). August's arrival shows an average high-temperature of a still tropical 90.9°F (32.7°C), hardly different from the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Heyburn, Oklahoma, with an average temperature ranging between max 83.7°F (28.7°C) and min 64.2°F (17.9°C). September heralds a minor drop in average high-temperature, sliding from August's hot 90.9°F (32.7°C) to a moderately hot 83.7°F (28.7°C). Weather in September »
Weather in October
October, like September, is an agreeable autumn month in Heyburn, Oklahoma, with an average temperature ranging between max 70.9°F (21.6°C) and min 53.1°F (11.7°C). The transition into October is accompanied by a temperature decrease, with the average high-temperature shifting from a warm 83.7°F (28.7°C) in September to an agreeable 70.9°F (21.6°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a moderate month in Heyburn, Oklahoma, with an average temperature varying between 43°F (6.1°C) and 59.2°F (15.1°C). November's onset brings a reduction in the average high-temperature, from a pleasant 70.9°F (21.6°C) in October to a mild 59.2°F (15.1°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Heyburn, Oklahoma, with temperature in the range of an average high of 48.7°F (9.3°C) and an average low of 34.5°F (1.4°C). With December's arrival, Heyburn's weather changes as the average high-temperature falls from a moderate 59.2°F (15.1°C) in November to a chilly 48.7°F (9.3°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Heyburn?
Temperature records mark January as the coldest month, with highs averaging 46.9°F (8.3°C) and lows at 31.5°F (-0.3°C).
What are the least humid months in Heyburn?
January and August, with an average relative humidity of 66%, are the least humid months.
What is the driest month in Heyburn?
January is the month with the least rainfall. Rain falls for 5.4 days and accumulates 1.22" (31mm) of precipitation.
How many days does it rain in Heyburn?
In Heyburn, Oklahoma, during the entire year, the rain falls for 129.3 days and collects up to 29.13" (740mm) of precipitation.
When does it snow in Heyburn?
Months with snowfall in Heyburn, Oklahoma, are January through March, November and December.
How many days does it snow in Heyburn?
In Heyburn, during the entire year, snow falls for 5.8 days and aggregates up to 3.46" (88mm) of snow.
What is the month with the lowest UV index in Heyburn?
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Heyburn.
When does it snow the most in Heyburn?
February is the month with the most snowfall. Snow falls for 2.4 days and accumulates 1.65" (42mm) of snow.
When is Daylight Saving Time (DST) in Heyburn?
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.
When it does not snow in Heyburn?
In Heyburn, snow does not fall in April through October.
What is the most humid month in Heyburn?
With an average relative humidity of 80%, May is the most humid month.
What is the wettest month in Heyburn?
The month with the most rainfall is May, when the rain falls for 16.4 days and typically aggregates up to 4.92" (125mm) of precipitation.
When are the longest days in Heyburn?
The month with the longest days in Heyburn is June, with an average of 14h and 36min of daylight.
What is the month with the highest UV index in Heyburn?
June through August, with an average maximum UV index of 7, are months with the highest UV index in Heyburn.
What time of the year is the hottest in Heyburn?
Heyburn's temperatures peak on average in July, reaching 91.4°F (33°C) at their highest and 72.1°F (22.3°C) at their lowest.
What month has the most sunshine in Heyburn?
August has the most sunshine of the year in Heyburn, with an average of 11h of sunshine.
What is the month with the shortest days in Heyburn?
The month with the shortest days is December, with an average of 9h and 48min of daylight.
What is the month with the least sunshine in Heyburn?
The month with the least sunshine in Heyburn, Oklahoma, is December, with an average of 5.7h of sunshine.
Average temperature
Heyburn, OK
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (46.9°F).
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure
Heyburn, 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:
29.91"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"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
Heyburn, 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:
10.9mph - Average wind speed in May:
9.3mph - Average wind speed in June:
8.5mph
- Average wind speed in July:
7.3mph - Average wind speed in August:
7.4mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.1mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.3mph
The windiest months (with the highest average wind speed) are March and April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity
Heyburn, OK
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and August (66%).
Average rainfall
Heyburn, OK
- Average rainfall in January:
1.22" - Average rainfall in February:
1.34" - Average rainfall in March:
2.24" - Average rainfall in April:
2.72" - Average rainfall in May:
4.92" - Average rainfall in June:
2.09"
- Average rainfall in July:
2.64" - Average rainfall in August:
2.87" - Average rainfall in September:
3.35" - Average rainfall in October:
3.03" - Average rainfall in November:
1.38" - Average rainfall in December:
1.34"
The wettest month (with the highest rainfall) is May (4.92").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days
Heyburn, OK
- Average rainfall days in January:
5.4 days - Average rainfall days in February:
8.1 days - Average rainfall days in March:
11.5 days - Average rainfall days in April:
14.2 days - Average rainfall days in May:
16.4 days - Average rainfall days in June:
11.9 days
- Average rainfall days in July:
13.2 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
10.9 days - Average rainfall days in November:
7.5 days - Average rainfall days in December:
6.4 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (5.4 days).
Average snowfall
Heyburn, OK
The month with the highest snowfall is February (1.65").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Heyburn, OK
- Average snowfall days in January:
1.5 days - Average snowfall days in February:
2.4 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:
0.2 days - Average snowfall days in December:
1.1 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Heyburn, OK
- Average daylight in January:
10h and 1min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 3min - 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 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January:
5h and 5min - Average sunshine in February:
6h and 4min - Average sunshine in March:
7h and 1min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 4min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
11h and 0min - Average sunshine in September:
8h and 4min - Average sunshine in October:
6h and 4min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days
Heyburn, OK
- Average sunshine days in January:
22.5 days - Average sunshine days in February:
17.2 days - Average sunshine days in March:
16.8 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
12.7 days - Average sunshine days in June:
15.8 days
- Average sunshine days in July:
15.7 days - Average sunshine days in August:
16.2 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
21 days - Average sunshine days in December:
22.3 days
The month with the most sunshine days is January (22.5 days).
The month with the least sunshine days is May (12.7 days).
Average UV index
Heyburn, OK
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover
Heyburn, OK
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility
Heyburn, 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).
Heyburn, Oklahoma, USA
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