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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 Upland, California, is another enjoyable winter month, with an average temperature ranging between min 46.8°F (8.2°C) and max 64.6°F (18.1°C). As Upland transitions from December to January, the average high-temperatures adjust to a still enjoyable 64.6°F (18.1°C), nearly the same as the previous 62.1°F (16.7°C). Weather in January »
Weather in February
February, the last month of the winter in Upland, is another comfortable month, with temperature in the range of an average low of 45.7°F (7.6°C) and an average high of 64°F (17.8°C). Upland marks the start of February with an average high-temperature of a still comfortable 64°F (17.8°C), hinting at a slight fluctuation from January's 64.6°F (18.1°C). Weather in February »
Weather in March
The first month of the spring, March, is an agreeable month in Upland, California, with an average temperature ranging between min 46.9°F (8.3°C) and max 68.4°F (20.2°C). The arrival of March brings an average high-temperature of a pleasant 68.4°F (20.2°C), nearly identical to February's 64°F (17.8°C). Weather in March »
Weather in April
April, like March, is an agreeable spring month in Upland, California, with an average temperature fluctuating between 50.2°F (10.1°C) and 72.9°F (22.7°C). The dawn of April sees an average high-temperature of a still pleasant 72.9°F (22.7°C), subtly contrasting with March's 68.4°F (20.2°C). Weather in April »
Weather in May
The last month of the spring, May, is a warm month in Upland, California, with an average temperature fluctuating between 53.6°F (12°C) and 76.6°F (24.8°C). The onset of May brings an average high-temperature of a moderately hot 76.6°F (24.8°C), nearly matching the April temperature. Weather in May »
Weather in June
June, the first month of the summer in Upland, is still a warm month, with an average temperature varying between 58.5°F (14.7°C) and 84°F (28.9°C). With the onset of June, Upland's average high-temperature experiences a slight rise, moving from May's 76.6°F (24.8°C) to a still moderately hot 84°F (28.9°C). Weather in June »
Weather in July
July is a hot summer month in Upland, California, with an average temperature ranging between max 90°F (32.2°C) and min 64.8°F (18.2°C). July introduces a minor temperature shift, with average high-temperatures adjusting from June's warm 84°F (28.9°C) to a hot 90°F (32.2°C). Weather in July »
Weather in August
August, the last month of the summer in Upland, is another hot month, with an average temperature varying between 91°F (32.8°C) and 65.8°F (18.8°C). Temperature records mark August as the warmest month, with highs averaging 91°F (32.8°C) and lows at 65.8°F (18.8°C). The heat index value for August is computed to be a tropical 93.2°F (34°C). Weather in August »
Weather in September
September, the first month of the autumn in Upland, is still a hot month, with an average temperature varying between 63.5°F (17.5°C) and 88.2°F (31.2°C). The advent of September presents an average high-temperature of a still hot 88.2°F (31.2°C), maintaining a close correlation with the preceding month. Weather in September »
Weather in October
October, the same as September, is another warm autumn month in Upland, California, with an average temperature fluctuating between 57.9°F (14.4°C) and 79°F (26.1°C). A shift in the average high-temperature occurs in October, reducing from a tropical 88.2°F (31.2°C) in September to a moderately hot 79°F (26.1°C). Weather in October »
Weather in November
November, the last month of the autumn in Upland, is also an agreeable month, with an average temperature ranging between min 50.9°F (10.5°C) and max 70.7°F (21.5°C). November brings a minor shift in the average high-temperature, adjusting from a warm 79°F (26.1°C) in October to a pleasant 70.7°F (21.5°C). Weather in November »
Weather in December
December, the first month of the winter in Upland, is also an enjoyable month, with an average temperature varying between 45.5°F (7.5°C) and 62.1°F (16.7°C). December is the coldest month, with the temperature often reaching an average high of 62.1°F (16.7°C) and an average low of 45.5°F (7.5°C). Weather in December »
[Resources]Frequently asked questions
How many days does it rain in Upland?
In Upland, during the entire year, the rain falls for 49.6 days and collects up to 7.8" (198mm) of precipitation.
When it does not snow in Upland?
January, March through December are months without snowfall in Upland.
How many days does it snow in Upland?
In Upland, during the entire year, snow falls for 0.1 days.
What is the rainiest month in Upland?
February is the month with the most rainfall in Upland. Rain falls for 6 days and accumulates 1.77" (45mm) of precipitation.
When does it snow in Upland?
The only month with snowfall is February.
When does it snow the most in Upland?
February has the most snowfall days of the year in Upland, California. Snow falls for 0.1 days.
What is the month with the least sunshine in Upland?
February and December, with an average of 6.9h of sunshine, are months with the least sunshine in Upland, California.
What are the most humid months in Upland?
The months with the highest humidity in Upland, California, are March and May, with an average relative humidity of 54%.
When is Daylight Saving Time (DST) in Upland?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Upland, 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.
What is the driest month in Upland?
June is the month with the least rainfall in Upland, California. Rain falls for 1.2 days and accumulates 0.04" (1mm) of precipitation.
When are the longest days in Upland?
With an average of 14h and 24min of daylight, June has the longest days of the year.
What month has the most sunshine in Upland?
July has the most sunshine of the year, with an average of 12.1h of sunshine.
What is the month with the highest UV index in Upland?
July and August, with an average maximum UV index of 7, are months with the highest UV index in Upland, California.
What is the warmest month in Upland?
Upland, California, notes the warmest temperatures in August, with a average high of 91°F (32.8°C) and a low of 65.8°F (18.8°C).
What is the least humid month in Upland?
The least humid month in Upland, California, is August, with an average relative humidity of 42%.
What is the coldest time of year in Upland?
In Upland, California, the average lowest temperatures are observed in December, with a high of 62.1°F (16.7°C) and a low of 45.5°F (7.5°C).
What is the month with the shortest days in Upland?
The month with the shortest days in Upland is December, with an average of 9h and 54min of daylight.
What is the month with the lowest UV index in Upland?
December is the month with the lowest UV index in Upland, with an average maximum UV index of 3.
Average temperature
Upland, CA
The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is December (62.1°F).
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is December (45.5°F).
Average pressure
Upland, CA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.05"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.86"Hg
- Average pressure in July:
29.89"Hg - Average pressure in August:
29.88"Hg - Average pressure in September:
29.88"Hg - Average pressure in October:
29.94"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed
Upland, CA
- Average wind speed in January:
5.3mph - Average wind speed in February:
5mph - Average wind speed in March:
5.2mph - Average wind speed in April:
5.8mph - Average wind speed in May:
5.8mph - Average wind speed in June:
5.4mph
- Average wind speed in July:
5.1mph - Average wind speed in August:
4.7mph - Average wind speed in September:
4.4mph - Average wind speed in October:
4.8mph - Average wind speed in November:
5mph - Average wind speed in December:
5.2mph
The windiest months (with the highest average wind speed) are April and May (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).
Average humidity
Upland, CA
The months with the highest relative humidity are March and May (54%).
The month with the lowest relative humidity is August (42%).
Average rainfall
Upland, CA
- Average rainfall in January:
1.18" - Average rainfall in February:
1.77" - Average rainfall in March:
0.79" - Average rainfall in April:
0.71" - Average rainfall in May:
0.24" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.16" - Average rainfall in August:
0.12" - Average rainfall in September:
0.12" - Average rainfall in October:
0.24" - Average rainfall in November:
0.75" - Average rainfall in December:
1.69"
The wettest month (with the highest rainfall) is February (1.77").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days
Upland, CA
- Average rainfall days in January:
5.4 days - Average rainfall days in February:
6 days - Average rainfall days in March:
7.1 days - Average rainfall days in April:
5.7 days - Average rainfall days in May:
3.8 days - Average rainfall days in June:
1.2 days
- Average rainfall days in July:
2.8 days - Average rainfall days in August:
1.7 days - Average rainfall days in September:
2.5 days - Average rainfall days in October:
3 days - Average rainfall days in November:
4 days - Average rainfall days in December:
6.4 days
The month with the highest number of rainy days is March (7.1 days).
The month with the least rainy days is June (1.2 days).
Average snowfall days
Upland, 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
Upland, CA
- Average daylight in January:
10h and 1min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 2min
- Average daylight in July:
14h and 1min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 2min - Average daylight in December:
9h and 5min
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 - Average sunshine in February:
6h and 5min - Average sunshine in March:
9h and 0min - Average sunshine in April:
11h and 2min - Average sunshine in May:
11h and 5min - Average sunshine in June:
12h and 0min
- Average sunshine in July:
12h and 1min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 4min - Average sunshine in October:
8h and 5min - Average sunshine in November:
7h and 2min - Average sunshine in December:
6h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days
Upland, CA
- Average sunshine days in January:
24.6 days - Average sunshine days in February:
21.5 days - Average sunshine days in March:
23.6 days - Average sunshine days in April:
23.8 days - Average sunshine days in May:
26 days - Average sunshine days in June:
28.2 days
- Average sunshine days in July:
25.4 days - Average sunshine days in August:
26.8 days - Average sunshine days in September:
25.4 days - Average sunshine days in October:
26.5 days - Average sunshine days in November:
25.5 days - Average sunshine days in December:
23.2 days
The month with the most sunshine days is June (28.2 days).
The month with the least sunshine days is February (21.5 days).
Average UV index
Upland, CA
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover
Upland, CA
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility
Upland, 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).
Upland, California, USA
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