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
Halcyon's weather in January indicates an average high-temperature of a still refreshing 63°F (17.2°C), nearly consistent with the 61.2°F (16.2°C) of December. In January, Halcyon records an average nighttime temperature of 47.5°F (8.6°C).Humidity
The average relative humidity in January is 63%.Rainfall
In January, the rain falls for 5.5 days. Throughout January, 1.22" (31mm) of precipitation is accumulated. In Halcyon, during the entire year, the rain falls for 47.6 days and collects up to 6.93" (176mm) of precipitation.Daylight
In January, the average length of the day is 10h and 7min.On the first day of the month, sunrise is at 7:10 am and sunset at 5:01 pm. On the last day of January, sunrise is at 7:02 am and sunset at 5:29 pm PST.
Sunshine
The average sunshine in January is 6.8h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In January, the UV index of 4 transforms into the following advice:
Take precautions - Protection against skin and eye damage is obliged. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in January in Halcyon?
What is the average humidity in January?
How many days does it rain in January?
How many hours of daylight does Halcyon have in January?
When is the sunrise / sunset in January in Halcyon?
How long on average sun shines in January?
What is the month with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Halcyon, CA
- Average high temperature in January: 63°F
The warmest month (with the highest average high temperature) is September (79.5°F).
The month with the lowest average high temperature is December (61.2°F).
- Average low temperature in January: 47.5°F
The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is February (46°F).
Average pressure in January
Halcyon, CA
- Average pressure in January: 30.12"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in January
Halcyon, CA
- Average wind speed in January: 6.2mph
The windiest months (with the highest average wind speed) are April and May (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in January
Halcyon, CA
- Average humidity in January: 63%
The month with the highest relative humidity is March (68%).
The month with the lowest relative humidity is October (58%).
Average rainfall in January
Halcyon, CA
- Average rainfall in January: 1.22"
The wettest month (with the highest rainfall) is March (1.61").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in January
Halcyon, CA
- Average rainfall days in January: 5.5 days
The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is August (0.8 days).
Average daylight in January /
Average sunshine in January
Halcyon, CA
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January: 6h and 5min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 30min).
Average sunshine days in January
Halcyon, CA
- Average sunshine days in January: 24.3 days
The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is February (21 days).
Average UV index in January
Halcyon, CA
- Average UV index in January: 4
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in January
Halcyon, CA
- Average cloud cover in January: 23
The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in January
Halcyon, 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).
Halcyon, California, USA
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