January weather forecastMcCormick, WA
January
Weather in January
January is a chilly winter month in McCormick, Washington, with an average temperature fluctuating between 44.6°F (7°C) and 33.8°F (1°C).Temperature
In January, McCormick notes an average high-temperature of a chilly 44.6°F (7°C), hardly different from the preceding month. Nighttime temperatures in McCormick consistently average a wintry 33.8°F (1°C) during January.Humidity
The months with the highest humidity are January, February, November and December, with an average relative humidity of 89%.Rainfall
The month with the most rainfall in McCormick is January, when the rain falls for 18.6 days and typically aggregates up to 5.51" (140mm) of precipitation.Snowfall
Months with snowfall in McCormick, Washington, are January through March, November and December. In McCormick, in January, during 1.8 snowfall days, 1.85" (47mm) of snow is typically accumulated. Throughout the year, there are 9 snowfall days, and 5.59" (142mm) of snow is accumulated.Daylight
The average length of the day in January in McCormick is 9h and 5min.On the first day of January in McCormick, sunrise is at 7:57 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:15 pm PST.
Sunshine
In January, the average sunshine is 3.6h.UV index
The months with the lowest UV index in McCormick are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
McCormick, WA
- Average high temperature in January: 44.6°F
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in January: 33.8°F
The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).
Average pressure in January
McCormick, WA
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.02"Hg).
Average wind speed in January
McCormick, WA
- Average wind speed in January: 4.5mph
The windiest months (with the highest average wind speed) are January, March and November (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).
Average humidity in January
McCormick, WA
- Average humidity in January: 89%
The months with the highest relative humidity are January, February, November and December (89%).
The month with the lowest relative humidity is July (73%).
Average rainfall in January
McCormick, WA
- Average rainfall in January: 5.51"
The wettest month (with the highest rainfall) is January (5.51").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in January
McCormick, WA
- Average rainfall days in January: 18.6 days
The month with the highest number of rainy days is March (21.5 days).
The month with the least rainy days is August (6.4 days).
Average snowfall in January
McCormick, WA
- Average snowfall in January: 1.85"
The month with the highest snowfall is February (1.93").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
McCormick, WA
- Average snowfall days in January: 1.8 days
The month with the highest number of snowfall days is February (3.5 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
McCormick, WA
- Average daylight in January: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in January: 3h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in January
McCormick, WA
- Average sunshine days in January: 9.6 days
The months with the most sunshine days are July and August (20.8 days).
The month with the least sunshine days is February (7.6 days).
Average UV index in January
McCormick, WA
- Average UV index in January: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
McCormick, WA
- Average cloud cover in January: 65
The months with the most cloud cover are January, February and December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in January
McCormick, WA
- Average visibility in January: 4mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).





