Expand
Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Island Mountain, California, is another fresh winter month, with an average temperature fluctuating between 54.3°F (12.4°C) and 44.8°F (7.1°C). January observes an average high-temperature of a still cool 54.3°F (12.4°C), marking an insignificant difference from December's 53.4°F (11.9°C). Weather in January »
Weather in February
The last month of the winter, February, is also a fresh month in Island Mountain, California, with an average temperature ranging between max 54.1°F (12.3°C) and min 43.5°F (6.4°C). As Island Mountain, California, transitions into February, the average high-temperature stands at a still cool 54.1°F (12.3°C), offering little variation from the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Island Mountain, is also a fresh month, with an average temperature ranging between max 54.9°F (12.7°C) and min 44.2°F (6.8°C). The shift into March records an average high-temperature of a still cool 54.9°F (12.7°C), subtly varied from February's 54.1°F (12.3°C). Weather in March »
Weather in April
April is a moderate spring month in Island Mountain, California, with an average temperature ranging between min 45.7°F (7.6°C) and max 57.2°F (14°C). The arrival of April brings an average high-temperature of a refreshing 57.2°F (14°C), nearly identical to March's 54.9°F (12.7°C). Weather in April »
Weather in May
The last month of the spring, May, is a comfortable month in Island Mountain, California, with an average temperature fluctuating between 48.4°F (9.1°C) and 61°F (16.1°C). Island Mountain, California, registers an average high-temperature of a still refreshing 61°F (16.1°C) with the arrival of May, showing minor deviation from the preceding month. Weather in May »
Weather in June
The first month of the summer, June, is still a comfortable month in Island Mountain, California, with temperature in the range of an average low of 51.8°F (11°C) and an average high of 66.6°F (19.2°C). As Island Mountain welcomes June, the average high-temperature displays a subtle shift, adjusting from an enjoyable 61°F (16.1°C) in May to a still comfortable 66.6°F (19.2°C). Weather in June »
Weather in July
July is an agreeable summer month in Island Mountain, California, with an average temperature varying between 69.4°F (20.8°C) and 54.3°F (12.4°C). The transition into July notes an average high-temperature of a pleasant 69.4°F (20.8°C), revealing a mild distinction from the 66.6°F (19.2°C) in June. Weather in July »
Weather in August
August, the last month of the summer in Island Mountain, is also an agreeable month, with temperature in the range of an average high of 69.4°F (20.8°C) and an average low of 54.3°F (12.4°C). The dawn of August brings a marginal shift in the average high-temperature to a still agreeable 69.4°F (20.8°C), equivalent to July's readings. Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Island Mountain, California, with temperature in the range of an average high of 69.8°F (21°C) and an average low of 54.3°F (12.4°C). Island Mountain witnesses the warmest weather in September, with temperatures averaging a high of 69.8°F (21°C) and a low of 54.3°F (12.4°C). Weather in September »
Weather in October
October, like September, in Island Mountain, California, is another refreshing autumn month, with temperature in the range of an average high of 63.9°F (17.7°C) and an average low of 51.3°F (10.7°C). In October, the average high-temperature marginally decreases from an agreeable 69.8°F (21°C) in September to a comfortable 63.9°F (17.7°C). Weather in October »
Weather in November
November, the last month of the autumn in Island Mountain, is another mild month, with temperature in the range of an average low of 47.1°F (8.4°C) and an average high of 57.6°F (14.2°C). As October transitions into November, Island Mountain sees a gentle drop in the average high-temperature, transitioning from a refreshing 63.9°F (17.7°C) to a moderate 57.6°F (14.2°C). Weather in November »
Weather in December
December, the first month of the winter in Island Mountain, is also a fresh month, with an average temperature varying between 43.9°F (6.6°C) and 53.4°F (11.9°C). The coldest period tends to be December, when average temperatures fluctuate between a high of 53.4°F (11.9°C) and a low of 43.9°F (6.6°C). Weather in December »
[Resources]Frequently asked questions
How many days does it rain in Island Mountain?
In Island Mountain, during the entire year, the rain falls for 102.7 days and collects up to 28.78" (731mm) of precipitation.
When it does not snow in Island Mountain?
In Island Mountain, California, snow does not fall in January, March through December.
How many days does it snow in Island Mountain?
In Island Mountain, California, during the entire year, snow falls for 0.1 days.
When is the lowest UV index in Island Mountain?
January through March, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Island Mountain, California.
When does it snow in Island Mountain?
The only month with snowfall in Island Mountain, California, is February.
When does it snow the most in Island Mountain?
February has the most snowfall days of the year in Island Mountain. Snow falls for 0.1 days.
What is the most humid month in Island Mountain?
The most humid month in Island Mountain is March, with an average relative humidity of 81%.
When is Daylight Saving Time (DST) in Island Mountain?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
When are the longest days in Island Mountain?
June has the longest days of the year in Island Mountain, California, with an average of 15h and 0min of daylight.
What are the months with the highest UV index in Island Mountain?
The months with the highest UV index in Island Mountain, California, are June through August, with an average maximum UV index of 5.
What is the driest month in Island Mountain?
The month with the least rainfall in Island Mountain, California, is July, when the rain falls for 2.4 days and typically collects 0.08" (2mm) of precipitation.
What are the months with the most sunshine in Island Mountain?
July and August, with an average of 11.7h of sunshine, are months with the most sunshine in Island Mountain, California.
What time of the year is the hottest in Island Mountain?
September is the month when Island Mountain, California, sees the average highest temperatures, with a high of 69.8°F (21°C) and a low of 54.3°F (12.4°C).
What is the least humid month in Island Mountain?
With an average relative humidity of 72%, September is the least humid month in Island Mountain.
What is the coldest month in Island Mountain?
December stands out as Island Mountain's coldest month, with temperatures ranging between an average high of 53.4°F (11.9°C) and a low of 43.9°F (6.6°C).
What is the rainiest month in Island Mountain?
December is the month with the most rainfall in Island Mountain, California. Rain falls for 14.8 days and accumulates 5.31" (135mm) of precipitation.
What is the month with the shortest days in Island Mountain?
December has the shortest days of the year, with an average of 9h and 24min of daylight.
What is the month with the least sunshine in Island Mountain?
December has the least sunshine of the year in Island Mountain, California, with an average of 5h of sunshine.
Average temperature
Island Mountain, CA
The warmest month (with the highest average high temperature) is September (69.8°F).
The month with the lowest average high temperature is December (53.4°F).
The months with the highest average low temperature are July, August and September (54.3°F).
The coldest month (with the lowest average low temperature) is February (43.5°F).
Average pressure
Island Mountain, CA
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
30.06"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
29.95"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are August and September (29.95"Hg).
Average wind speed
Island Mountain, CA
- Average wind speed in January:
7.8mph - Average wind speed in February:
9.3mph - Average wind speed in March:
9.3mph - Average wind speed in April:
9.4mph - Average wind speed in May:
9.5mph - Average wind speed in June:
10.6mph
- Average wind speed in July:
8.9mph - Average wind speed in August:
7.8mph - Average wind speed in September:
8.1mph - Average wind speed in October:
8.2mph - Average wind speed in November:
8mph - Average wind speed in December:
8.6mph
The windiest month (with the highest average wind speed) is June (10.6mph).
The calmest months (with the lowest average wind speed) are January and August (7.8mph).
Average humidity
Island Mountain, CA
The month with the highest relative humidity is March (81%).
The month with the lowest relative humidity is September (72%).
Average rainfall
Island Mountain, CA
- Average rainfall in January:
4.8" - Average rainfall in February:
4.02" - Average rainfall in March:
4.61" - Average rainfall in April:
2.05" - Average rainfall in May:
1.73" - Average rainfall in June:
0.43"
- Average rainfall in July:
0.08" - Average rainfall in August:
0.12" - Average rainfall in September:
0.47" - Average rainfall in October:
1.97" - Average rainfall in November:
3.19" - Average rainfall in December:
5.31"
The wettest month (with the highest rainfall) is December (5.31").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days
Island Mountain, CA
- Average rainfall days in January:
13 days - Average rainfall days in February:
12.2 days - Average rainfall days in March:
16.4 days - Average rainfall days in April:
10.9 days - Average rainfall days in May:
6.6 days - Average rainfall days in June:
3.7 days
- Average rainfall days in July:
2.4 days - Average rainfall days in August:
1.8 days - Average rainfall days in September:
3.5 days - Average rainfall days in October:
6.7 days - Average rainfall days in November:
10.7 days - Average rainfall days in December:
14.8 days
The month with the highest number of rainy days is March (16.4 days).
The month with the least rainy days is August (1.8 days).
Average snowfall days
Island Mountain, CA
- Average snowfall days in January:
0 days - Average snowfall days in February:
0.1 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
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 / Average sunshine
Island Mountain, CA
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
5h and 1min - Average sunshine in February:
5h and 4min - Average sunshine in March:
6h and 4min - Average sunshine in April:
9h and 1min - Average sunshine in May:
10h and 1min - Average sunshine in June:
11h and 1min
- Average sunshine in July:
11h and 4min - Average sunshine in August:
11h and 4min - Average sunshine in September:
10h and 2min - Average sunshine in October:
6h and 4min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 0min
The months with the most sunshine are July and August (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days
Island Mountain, CA
- Average sunshine days in January:
16.9 days - Average sunshine days in February:
14.9 days - Average sunshine days in March:
13.1 days - Average sunshine days in April:
17.7 days - Average sunshine days in May:
22.8 days - Average sunshine days in June:
25.3 days
- Average sunshine days in July:
28.4 days - Average sunshine days in August:
28.2 days - Average sunshine days in September:
25.9 days - Average sunshine days in October:
23.3 days - Average sunshine days in November:
18.2 days - Average sunshine days in December:
15.5 days
The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is March (13.1 days).
Average UV index
Island Mountain, CA
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover
Island Mountain, CA
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility
Island Mountain, CA
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).
Island Mountain, California, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location
