What is the warmest month in Riverside County?
The warmest month is August with an average temperature of 34 °C over the past years.
Calculated from weather data of French Valley Airport (KF70) between 2020 and 2024.
Month | Average | 2024 | 2023 | 2022 | 2021 | 2020 |
---|---|---|---|---|---|---|
January | 18.6 | 17.8 | 15.5 | 20.0 | 19.6 | 19.5 |
February | 18.6 | 16.8 | 16.6 | 21.1 | 20.1 | 21.1 |
March | 20.0 | 18.3 | 16.5 | 23.3 | 19.6 | 18.1 |
April | 24.0 | 23.6 | 24.6 | 24.3 | 21.6 | |
May | 24.3 | 21.8 | 25.8 | 25.1 | 27.5 | |
June | 29.2 | 25.1 | 32.1 | 31.0 | 28.3 | |
July | 33.4 | 34.3 | 32.3 | 33.3 | 32.8 | |
August | 33.8 | 33.6 | 34.7 | 33.1 | 34.8 | |
September | 31.4 | 27.5 | 33.3 | 31.8 | 35.0 | |
October | 27.9 | 28.5 | 26.6 | 25.6 | 30.1 | |
November | 23.6 | 23.5 | 19.8 | 26.3 | 23.6 | |
December | 18.9 | 20.5 | 15.5 | 16.8 | 20.3 | |
Average | 24.5 | 17.6 | 24.0 | 26.1 | 25.5 | 26.1 |
Month | Average | 2024 | 2023 | 2022 | 2021 | 2020 |
---|---|---|---|---|---|---|
January | 5.1 | 5 | 5 | 6 | 5 | 4 |
February | 5.0 | 7 | 3 | 4 | 5 | 5 |
March | 6.9 | 7 | 6 | 7 | 6 | 7 |
April | 9.5 | 8 | 10 | 9 | 11 | |
May | 11.4 | 11 | 11 | 11 | 13 | |
June | 14.0 | 13 | 15 | 14 | 14 | |
July | 17.6 | 17 | 17 | 19 | 16 | |
August | 18.3 | 18 | 20 | 18 | 19 | |
September | 16.4 | 16 | 19 | 16 | 16 | |
October | 12.0 | 13 | 13 | 11 | 13 | |
November | 7.5 | 8 | 6 | 8 | 7 | |
December | 5.0 | 6 | 4 | 5 | 4 | |
Average | 10.2 | 6.3 | 10.3 | 11.1 | 10.5 | 10.6 |
Number of days | 2024 | 2023 | 2022 | 2021 | 2020 |
---|---|---|---|---|---|
30 °C or warmer | 0 | 79 | 107 | 103 | 116 |
25 °C or warmer | 0 | 151 | 187 | 184 | 191 |
20 °C or warmer | 20 | 231 | 269 | 267 | 273 |
0 °C or colder | 1 | 3 | 1 | 0 | 2 |
Month | Average | 2024 | 2023 | 2022 | 2021 | 2020 |
---|---|---|---|---|---|---|
January | 2.4 | 6 | 14 | 0 | 0 | 0 |
February | 2.5 | 14 | 4 | 3 | 0 | 0 |
March | 3.7 | 10 | 15 | 2 | 5 | 0 |
April | 0.2 | 0 | 0 | 1 | 0 | |
May | 0.3 | 2 | 0 | 0 | 0 | |
June | 0.0 | 0 | 0 | 0 | 0 | |
July | 0.1 | 0 | 0 | 1 | 0 | |
August | 0.2 | 2 | 0 | 0 | 0 | |
September | 0.3 | 0 | 2 | 0 | 0 | |
October | 0.4 | 1 | 0 | 3 | 0 | |
November | 0.6 | 1 | 4 | 0 | 0 | |
December | 2.4 | 1 | 7 | 11 | 0 | |
Average | 1.9 | 9.7 | 3.2 | 1.1 | 1.6 |
Month | Average | 2024 | 2023 | 2022 | 2021 | 2020 |
---|---|---|---|---|---|---|
January | 6.6 | 6 | 8 | 6 | 6 | 6 |
February | 7.7 | 7 | 10 | 9 | 6 | 7 |
March | 8.3 | 9 | 9 | 10 | 8 | 7 |
April | 9.3 | 8 | 9 | 10 | 8 | |
May | 9.8 | 9 | 10 | 10 | 8 | |
June | 9.2 | 9 | 10 | 9 | 9 | |
July | 9.5 | 9 | 10 | 10 | 9 | |
August | 9.5 | 9 | 10 | 9 | 9 | |
September | 8.1 | 8 | 9 | 9 | 2 | |
October | 7.5 | 8 | 8 | 9 | 3 | |
November | 6.9 | 7 | 8 | 7 | 4 | |
December | 5.7 | 5 | 5 | 6 | 4 | |
Average | 8.2 | 7.4 | 8.3 | 8.7 | 8.2 | 6.4 |
Month | 2024 | 2023 | 2022 | 2021 | 2020 |
---|---|---|---|---|---|
January | SW | SW | N | NW | W |
February | SW | SW | NW | SW | SW |
March | SW | SW | SW | SW | SW |
April | SW | SW | SW | SW | |
May | SW | SW | SW | SW | |
June | SW | SW | SW | SW | |
July | SW | SW | SW | SW | |
August | SW | SW | SW | SW | |
September | SW | SW | SW | SW | |
October | SW | SW | SW | SW | |
November | SW | SW | SW | SW | |
December | NW | SW | SW | SE |
The warmest month is August with an average temperature of 34 °C over the past years.
The coldest month is February with an average daytime temperature of 19 °C in the past few years.
Chance of precipitation is the highest in March with a probability of around 3.8 %.
The least rainfall and snow can be expected in June. The probability is about 0.0 %.