January weather forecastBryn Mawr, CA
January
Weather in January
January is an enjoyable winter month in Bryn Mawr, California, with an average temperature fluctuating between 43.3°F (6.3°C) and 60.8°F (16°C).Temperature
The high-temperature average in January for Bryn Mawr is an enjoyable 60.8°F (16°C), staying closely aligned with December's conditions. Bryn Mawr's nighttime temperature during January is consistently averaged at a frosty 43.3°F (6.3°C).Humidity
The average relative humidity in January in Bryn Mawr is 49%.Rainfall
In Bryn Mawr, during January, the rain falls for 5.2 days and regularly aggregates up to 0.83" (21mm) of precipitation. In Bryn Mawr, during the entire year, the rain falls for 49.1 days and collects up to 6.5" (165mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
In Bryn Mawr, the average length of the day in January is 10h and 11min.On the first day of January in Bryn Mawr, sunrise is at 6:54 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 5:17 pm PST.
Sunshine
In January, the average sunshine in Bryn Mawr is 7h.UV index
The average daily maximum UV index in January in Bryn Mawr is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In January, the maximum UV index of 4 suggests these recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Bryn Mawr, CA
- Average high temperature in January: 60.8°F
The warmest months (with the highest average high temperature) are July and August (90.3°F).
The month with the lowest average high temperature is December (58.8°F).
- Average low temperature in January: 43.3°F
The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).
Average pressure in January
Bryn Mawr, CA
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in January
Bryn Mawr, CA
- Average wind speed in January: 5.5mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is September (4.7mph).
Average humidity in January
Bryn Mawr, CA
- Average humidity in January: 49%
The month with the highest relative humidity is February (53%).
The month with the lowest relative humidity is August (37%).
Average rainfall in January
Bryn Mawr, CA
- Average rainfall in January: 0.83"
The wettest month (with the highest rainfall) is December (1.42").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in January
Bryn Mawr, CA
- Average rainfall days in January: 5.2 days
The month with the highest number of rainy days is March (6.7 days).
The month with the least rainy days is June (1.3 days).
Average snowfall days in January
Bryn Mawr, 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
Bryn Mawr, CA
- Average daylight in January: 10h and 12min
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: 7h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in January
Bryn Mawr, CA
- Average sunshine days in January: 24.3 days
The month with the most sunshine days is June (28 days).
The month with the least sunshine days is February (21.3 days).
Average UV index in January
Bryn Mawr, CA
- Average UV index in January: 4
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in January
Bryn Mawr, CA
- Average cloud cover in January: 20
The months with the most cloud cover are February, March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in January
Bryn Mawr, 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).





