Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January is the coldest month, with the temperature often reaching an average high of 50.2°F (10.1°C) and an average low of 33.4°F (0.8°C).Humidity
In January, the average relative humidity is 65%.Rainfall
January is the month with the least rainfall in Roff. Rain falls for 6.3 days and accumulates 1.34" (34mm) of precipitation.Snowfall
Months with snowfall in Roff are January through April, November and December. In January, in Roff, it is snowing for 1 days. Throughout January, 0.31" (8mm) of snow is accumulated. In Roff, during the entire year, snow falls for 5.3 days and aggregates up to 2.6" (66mm) of snow.Daylight
The average length of the day in January in Roff, Oklahoma, is 10h and 9min.On the first day of January in Roff, sunrise is at 7:34 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:55 pm CST.
Sunshine
In Roff, the average sunshine in January is 6h.UV index
In Roff, the average daily maximum UV index in January is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The UV index of 3 during January leads to these advisories:
Heed the precautions - It is counselled to guard against solar damage. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Frequently asked questions
What month is the coldest in Roff?
What is the usual temperature for Roff in January?
What is the average humidity in January in Roff?
What is the driest month in Roff?
How much does it rain in Roff in January?
How much does it snow in Roff in January?
How many hours of daylight does Roff have in January?
When is the sunrise / sunset in January in Roff?
How long on average sun shines in January in Roff?
What is the UV index intensity in January in Roff?
Average temperature in January
Roff, OK
- Average high temperature in January: 50.2°F
The warmest month (with the highest average high temperature) is August (93.4°F).
The month with the lowest average high temperature is January (50.2°F).
- Average low temperature in January: 33.4°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in January
Roff, 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
Roff, OK
- Average wind speed in January: 10.1mph
The windiest months (with the highest average wind speed) are March and April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in January
Roff, OK
- Average humidity in January: 65%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (61%).
Average rainfall in January
Roff, OK
- Average rainfall in January: 1.34"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in January
Roff, OK
- Average rainfall days in January: 6.3 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in January
Roff, OK
- Average snowfall in January: 0.31"
The month with the highest snowfall is February (1.3").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Roff, OK
- Average snowfall days in January: 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 in January /
Average sunshine in January
Roff, OK
- Average daylight in January: 10h and 1min
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 0min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in January
Roff, OK
- Average sunshine days in January: 22.9 days
The month with the most sunshine days is January (22.9 days).
The month with the least sunshine days is May (14.3 days).
Average UV index in January
Roff, OK
- Average UV index in January: 3
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 in January
Roff, OK
- Average cloud cover in January: 31
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in January
Roff, 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).
Roff, Oklahoma, USA
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