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 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 arrival of January sees a recorded average high-temperature of a still mild 57°F (13.9°C), showing little divergence from the previous month's conditions. Penngrove records a steady low-temperature average of 43.2°F (6.2°C) during January.Humidity
The average relative humidity in January in Penngrove is 75%.Rainfall
In January, the rain falls for 5.6 days. Throughout January, 0.51" (13mm) of precipitation is accumulated. Throughout the year, in Penngrove, California, there are 44.3 rainfall days, and 3.78" (96mm) of precipitation is accumulated.Daylight
The average length of the day in January in Penngrove is 9h and 52min.On the first day of January in Penngrove, sunrise is at 7:27 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 5:31 pm PST.
Sunshine
In Penngrove, the average sunshine in January is 5.8h.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 rays for average individuals.Note: A daily maximum UV index of 3 in January translates into the following instructions:
Act with care - The need to guard against sun damage is communicated. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Penngrove in January?
What is the average humidity in January in Penngrove?
How many days does it rain in January in Penngrove?
How many hours of daylight does Penngrove have in January?
When is the sunrise / sunset in January in Penngrove?
How many hours of sunshine does Penngrove have in January?
What are the months with the lowest UV index in Penngrove?
What is the UV index reading in January in Penngrove?
Average temperature in January
Penngrove, CA
- Average high temperature in January: 57°F
The warmest months (with the highest average high temperature) are July and August (79.9°F).
The month with the lowest average high temperature is December (55.6°F).
- Average low temperature in January: 43.2°F
The months with the highest average low temperature are August and September (55°F).
The coldest month (with the lowest average low temperature) is December (42.4°F).
Average pressure in January
Penngrove, 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
Penngrove, CA
- Average wind speed in January: 5.1mph
The windiest month (with the highest average wind speed) is May (6.8mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).
Average humidity in January
Penngrove, CA
- Average humidity in January: 75%
The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is September (62%).
Average rainfall in January
Penngrove, CA
- Average rainfall in January: 0.51"
The wettest month (with the highest rainfall) is February (0.91").
The driest months (with the least rainfall) are June, July, August and September (0.04").
Average rainfall days in January
Penngrove, CA
- Average rainfall days in January: 5.6 days
The month with the highest number of rainy days is March (8.7 days).
The month with the least rainy days is August (0.5 days).
Average daylight in January /
Average sunshine in January
Penngrove, 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 36min).
- Average sunshine in January: 5h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in January
Penngrove, CA
- Average sunshine days in January: 23.8 days
The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is March (20.8 days).
Average UV index in January
Penngrove, CA
- Average UV index in January: 3
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in January
Penngrove, CA
- Average cloud cover in January: 36
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in January
Penngrove, 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).
Penngrove, California, USA
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