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
Grafton reaches its lowest average temperatures in January, measuring 28.6°F (-1.9°C) at the peak and 16.5°F (-8.6°C) at the lowest.Humidity
In Grafton, New York, the average relative humidity in January is 82%.Rainfall
January is the month with the least rainfall in Grafton. Rain falls for 6.3 days and accumulates 1.5" (38mm) of precipitation.Snowfall
Months with snowfall in Grafton are January through May, October through December. In Grafton, in January, snow falls for 10.6 days, with typically accumulated 4.8" (122mm) of snow. Throughout the year, in Grafton, there are 44.8 snowfall days, and 23.27" (591mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 28min.On the first day of January, sunrise is at 7:24 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:04 pm EST.
Sunshine
In Grafton, the average sunshine in January is 4.2h.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: The UV index of 2 in January translates into these instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Grafton?
How cold is January in Grafton?
What is the average humidity in January in Grafton?
What is the driest month in Grafton?
How many days does it rain in January in Grafton?
How much does it snow in Grafton in January?
How many hours of daylight does Grafton have in January?
When is the sunrise / sunset in January in Grafton?
How long on average sun shines in January in Grafton?
When is the lowest UV index in Grafton?
How high is the UV index in January in Grafton?
Average temperature in January
Grafton, NY
- Average high temperature in January: 28.6°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in January: 16.5°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure in January
Grafton, NY
- Average pressure in January: 30.04"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Grafton, NY
- Average wind speed in January: 8.2mph
The windiest months (with the highest average wind speed) are January and February (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in January
Grafton, NY
- Average humidity in January: 82%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (74%).
Average rainfall in January
Grafton, NY
- Average rainfall in January: 1.5"
The wettest months (with the highest rainfall) are May and October (2.52").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days in January
Grafton, NY
- Average rainfall days in January: 6.3 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in January
Grafton, NY
- Average snowfall in January: 4.8"
The month with the highest snowfall is February (5.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Grafton, NY
- Average snowfall days in January: 10.6 days
The month with the highest number of snowfall days is February (11.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Grafton, NY
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in January
Grafton, NY
- Average sunshine days in January: 17.4 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is June (12.9 days).
Average UV index in January
Grafton, NY
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in January
Grafton, NY
- Average cloud cover in January: 56
The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in January
Grafton, NY
- Average visibility in January: 5mi
The months with the highest visibility are April, July, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, August, September and October (5mi).
Grafton, New York, USA
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