January weather forecastHeyburn, OK
January
Weather in January
January, the same as December, in Heyburn, Oklahoma, is a frosty winter month, with temperature in the range of an average low of 31.5°F (-0.3°C) and an average high of 46.9°F (8.3°C).Temperature
January, with an average high of 46.9°F (8.3°C) and a low of 31.5°F (-0.3°C), signifies the coldest month of the year.Humidity
January and August, with an average relative humidity of 66%, are the least humid months.Rainfall
The month with the least rainfall is January, when the rain falls for 5.4 days and typically collects 1.22" (31mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Heyburn, in January, snow falls for 1.5 days, with typically accumulated 1.02" (26mm) of snow. In Heyburn, during the entire year, snow falls for 5.8 days and aggregates up to 3.46" (88mm) of snow.Daylight
The average length of the day in January is 10h and 3min.On the first day of January, sunrise is at 7:35 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:50 pm CST.
Sunshine
The average sunshine in January is 5.9h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 2 during January translates into these guidelines:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Heyburn, OK
- Average high temperature in January: 46.9°F
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).
- Average low temperature in January: 31.5°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 in January
Heyburn, OK
- Average pressure in January: 30.16"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 in January
Heyburn, OK
- Average wind speed in January: 9.9mph
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 in January
Heyburn, OK
- Average humidity in January: 66%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and August (66%).
Average rainfall in January
Heyburn, OK
- Average rainfall in January: 1.22"
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 in January
Heyburn, OK
- Average rainfall days in January: 5.4 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 in January
Heyburn, OK
- Average snowfall in January: 1.02"
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 in January
Heyburn, OK
- Average snowfall days in January: 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 May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Heyburn, OK
- Average daylight in January: 10h and 6min
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 54min
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 in January
Heyburn, OK
- Average sunshine days in January: 22.5 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 in January
Heyburn, OK
- Average UV index in January: 2
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 in January
Heyburn, OK
- Average cloud cover in January: 33
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 in January
Heyburn, OK
- Average visibility in January: 6mi
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).
