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
The advent of January sees the average high-temperature at a refreshing 57°F (13.9°C), subtly shifted from December's 55°F (12.8°C). Healdsburg witnesses a consistent average low-temperature of 41.2°F (5.1°C) throughout January.Humidity
In January, the average relative humidity is 74%.Rainfall
In Healdsburg, in January, during 10.7 rainfall days, 3.5" (89mm) of precipitation is typically accumulated. In Healdsburg, during the entire year, the rain falls for 81.2 days and collects up to 19.84" (504mm) of precipitation.Snowfall
January, March through December are months without snowfall in Healdsburg.Daylight
In Healdsburg, the average length of the day in January is 9h and 50min.On the first day of the month, sunrise is at 7:29 am and sunset at 5:00 pm. On the last day of January, sunrise is at 7:17 am and sunset at 5:31 pm PST.
Sunshine
In Healdsburg, the average sunshine in January is 5.7h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 3 during January translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
What is the usual temperature for Healdsburg in January?
What is the average humidity in January in Healdsburg?
How much does it rain in Healdsburg in January?
When it does not snow in Healdsburg?
Does it snow in Healdsburg in January?
How many hours of daylight does Healdsburg have in January?
What time are sunrise and sunset in January in Healdsburg?
How many hours of sunshine does Healdsburg have in January?
What is the month with the lowest UV index in Healdsburg?
What is the UV index reading in January in Healdsburg?
Average temperature in January
Healdsburg, CA
- Average high temperature in January: 57°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (55°F).
- Average low temperature in January: 41.2°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).
Average pressure in January
Healdsburg, CA
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in January
Healdsburg, CA
- Average wind speed in January: 4.7mph
The windiest months (with the highest average wind speed) are April and May (6.2mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).
Average humidity in January
Healdsburg, CA
- Average humidity in January: 74%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (57%).
Average rainfall in January
Healdsburg, CA
- Average rainfall in January: 3.5"
The wettest month (with the highest rainfall) is February (4.33").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in January
Healdsburg, CA
- Average rainfall days in January: 10.7 days
The month with the highest number of rainy days is March (14.2 days).
The month with the least rainy days is August (0.8 days).
Average snowfall in January
Healdsburg, CA
- Average snowfall in January: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in January
Healdsburg, CA
- Average snowfall days in January: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in January /
Average sunshine in January
Healdsburg, CA
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 5h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in January
Healdsburg, CA
- Average sunshine days in January: 19.1 days
The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (14.8 days).
Average UV index in January
Healdsburg, CA
- Average UV index in January: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in January
Healdsburg, CA
- Average cloud cover in January: 37
The month with the most cloud cover is March (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 6).
Average visibility in January
Healdsburg, CA
- 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).
Healdsburg, California, USA
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