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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 daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Monrovia, California, is another refreshing winter month, with an average temperature ranging between max 64°F (17.8°C) and min 46.9°F (8.3°C). Transitioning into January, Monrovia records an average high-temperature of a still enjoyable 64°F (17.8°C), almost identical to December's 61.7°F (16.5°C). Weather in January »
Weather in February
February, the last month of the winter in Monrovia, is also an enjoyable month, with an average temperature varying between 46°F (7.8°C) and 64°F (17.8°C). The transition into February notes an average high-temperature of a still comfortable 64°F (17.8°C), matching January's climate closely. Weather in February »
Weather in March
March, the first month of the spring in Monrovia, is still a comfortable month, with an average temperature varying between 67.5°F (19.7°C) and 47.3°F (8.5°C). The start of March sees the average high-temperature at a still comfortable 67.5°F (19.7°C), showing little difference from February's 64°F (17.8°C). Weather in March »
Weather in April
April is a pleasant spring month in Monrovia, California, with an average temperature ranging between min 49.6°F (9.8°C) and max 72.1°F (22.3°C). Monrovia experiences a minor change to a pleasant 72.1°F (22.3°C) in average high-temperature during April, closely reflecting March. Weather in April »
Weather in May
The last month of the spring, May, is a warm month in Monrovia, California, with an average temperature ranging between min 53.4°F (11.9°C) and max 75.2°F (24°C). Entering May, Monrovia's average high-temperature reads a warm 75.2°F (24°C), indicating a close resemblance to the previous month's climate. Weather in May »
Weather in June
The first month of the summer, June, is also a moderately hot month in Monrovia, California, with temperature in the range of an average high of 81.5°F (27.5°C) and an average low of 57.7°F (14.3°C). June signifies a subtle uplift in the average high-temperature, adjusting from a warm 75.2°F (24°C) in May to a still moderately hot 81.5°F (27.5°C). Weather in June »
Weather in July
July is a tropical summer month in Monrovia, California, with temperature in the range of an average low of 63.5°F (17.5°C) and an average high of 86.9°F (30.5°C). Monrovia in July experiences a slight uptick in the average high-temperature, adjusting from June's warm 81.5°F (27.5°C) to a hot 86.9°F (30.5°C). Weather in July »
Weather in August
The last month of the summer, August, is another hot month in Monrovia, California, with an average temperature fluctuating between 64.8°F (18.2°C) and 88.2°F (31.2°C). Monrovia witnesses the warmest weather in August, with temperatures averaging a high of 88.2°F (31.2°C) and a low of 64.8°F (18.2°C). The heat index value during August is evaluated at a hot 89.6°F (32°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Monrovia, California, with an average temperature ranging between min 62.8°F (17.1°C) and max 85.5°F (29.7°C). During September, Monrovia observes a subtle ascent to a moderately hot 85.5°F (29.7°C) from August's 88.2°F (31.2°C) in the average high-temperature. Weather in September »
Weather in October
October, the same as September, is a moderately hot autumn month in Monrovia, California, with an average temperature fluctuating between 58.1°F (14.5°C) and 78.1°F (25.6°C). Monrovia in October undergoes a slight reduction in the average high-temperature, shifting from September's 85.5°F (29.7°C) to a still warm 78.1°F (25.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Monrovia, is another pleasant month, with an average temperature fluctuating between 70°F (21.1°C) and 52°F (11.1°C). November ushers in a minute temperature change, with average high-temperatures reducing from October's warm 78.1°F (25.6°C) to a pleasant 70°F (21.1°C). Weather in November »
Weather in December
The first month of the winter, December, is still a comfortable month in Monrovia, California, with an average temperature fluctuating between 45.7°F (7.6°C) and 61.7°F (16.5°C). In Monrovia, December is the coldest month, with temperatures averaging a high of 61.7°F (16.5°C) and a low of 45.7°F (7.6°C). Weather in December »
[Resources]Frequently asked questions
How many days does it rain in Monrovia?
In Monrovia, California, during the entire year, the rain falls for 50.9 days and collects up to 8.46" (215mm) of precipitation.
What are the months with the least sunshine in Monrovia?
The months with the least sunshine in Monrovia, California, are January, February and December, with an average of 6.9h of sunshine.
What is the wettest month in Monrovia?
The wettest months in Monrovia, California, are February and December, with an average 1.77" (45mm) of rainfall.
What is the most humid month in Monrovia?
The months with the highest humidity are March and May, with an average relative humidity of 56%.
When is Daylight Saving Time (DST) in Monrovia?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Monrovia, 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 Monrovia?
The month with the least rainfall in Monrovia, California, is June, when the rain falls for 1.1 days and typically collects 0.04" (1mm) of precipitation.
When are the longest days in Monrovia?
June has the longest days of the year in Monrovia, with an average of 14h and 24min of daylight.
What is the month with the highest UV index in Monrovia?
The months with the highest UV index are June through September, with an average maximum UV index of 6.
What month has the most sunshine in Monrovia?
July has the most sunshine of the year, with an average of 12.1h of sunshine.
What month is the hottest in Monrovia?
August, with an average high of 88.2°F (31.2°C) and a low of 64.8°F (18.2°C), signifies the warmest month of the year.
What is the least humid month in Monrovia?
November is the least humid month in Monrovia, California, with an average relative humidity of 46%.
What time of the year is the coldest in Monrovia?
In Monrovia, December is the month with the lowest recorded average temperatures, measuring a high of 61.7°F (16.5°C) and a low of 45.7°F (7.6°C).
What is the month with the shortest days in Monrovia?
With an average of 9h and 54min of daylight, December has the shortest days of the year in Monrovia.
What is the month with the lowest UV index in Monrovia?
The month with the lowest UV index is December, with an average maximum UV index of 3.
Average temperature
Monrovia, CA
The warmest month (with the highest average high temperature) is August (88.2°F).
The month with the lowest average high temperature is December (61.7°F).
The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is December (45.7°F).
Average pressure
Monrovia, CA
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.05"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.91"Hg - Average pressure in August:
29.89"Hg - Average pressure in September:
29.89"Hg - Average pressure in October:
29.95"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Monrovia, CA
- Average wind speed in January:
5.5mph - Average wind speed in February:
5.1mph - Average wind speed in March:
5.2mph - Average wind speed in April:
5.8mph - Average wind speed in May:
5.7mph - Average wind speed in June:
5.3mph
- Average wind speed in July:
4.9mph - Average wind speed in August:
4.6mph - Average wind speed in September:
4.5mph - Average wind speed in October:
4.7mph - Average wind speed in November:
5mph - Average wind speed in December:
5.3mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity
Monrovia, CA
The months with the highest relative humidity are March and May (56%).
The month with the lowest relative humidity is November (46%).
Average rainfall
Monrovia, CA
- Average rainfall in January:
1.46" - Average rainfall in February:
1.77" - Average rainfall in March:
0.98" - Average rainfall in April:
0.67" - Average rainfall in May:
0.24" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.2" - Average rainfall in August:
0.12" - Average rainfall in September:
0.12" - Average rainfall in October:
0.28" - Average rainfall in November:
0.83" - Average rainfall in December:
1.77"
The wettest months (with the highest rainfall) are February and December (1.77").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days
Monrovia, CA
- Average rainfall days in January:
5.8 days - Average rainfall days in February:
5.9 days - Average rainfall days in March:
7.4 days - Average rainfall days in April:
5.8 days - Average rainfall days in May:
3.6 days - Average rainfall days in June:
1.1 days
- Average rainfall days in July:
3.2 days - Average rainfall days in August:
1.9 days - Average rainfall days in September:
2.6 days - Average rainfall days in October:
3.2 days - Average rainfall days in November:
4.3 days - Average rainfall days in December:
6.1 days
The month with the highest number of rainy days is March (7.4 days).
The month with the least rainy days is June (1.1 days).
Average daylight / Average sunshine
Monrovia, 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:
6h and 5min - Average sunshine in February:
6h and 5min - Average sunshine in March:
8h and 5min - Average sunshine in April:
11h and 2min - Average sunshine in May:
11h and 4min - 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 5min - Average sunshine in October:
8h and 4min - 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 January, February and December (Average sunshine: 6h and 54min).
Average sunshine days
Monrovia, CA
- Average sunshine days in January:
24.6 days - Average sunshine days in February:
21 days - Average sunshine days in March:
23.2 days - Average sunshine days in April:
22.8 days - Average sunshine days in May:
26.1 days - Average sunshine days in June:
28.3 days
- Average sunshine days in July:
25.6 days - Average sunshine days in August:
27.8 days - Average sunshine days in September:
26.2 days - Average sunshine days in October:
26.1 days - Average sunshine days in November:
24.6 days - Average sunshine days in December:
24 days
The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (21 days).
Average UV index
Monrovia, CA
The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover
Monrovia, CA
The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility
Monrovia, 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).
Monrovia, California, USA
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