Pomona, California, United States Climate

Weather: 12.38°C/54.28°F, Wind SW at 0 km/h, 89% Humidity, 0% Chance of rain

United States
(Photo by Paul Hanaoka on Unsplash)
Contents

Pomona Climate Summary

Located at an elevation of None meters (0 feet) above sea level, Pomona has a Mediterranean, warm summer climate (Classification: Csb). The district’s yearly temperature is 22.06ºC (71.71ºF) and it is 9.42% higher than United States’s averages. Pomona typically receives about 8.28 millimeters (0.33 inches) of precipitation and has 9.45 rainy days (2.59% of the time) annually.

CountryUnited States
CityCalifornia
Longitude-117.7499909
Latitude34.055103
Attitude/ElevationNonem (0ft)
Local timeSaturday 16:37
Annual high temperature25.06ºC (77.11ºF)
Annual low temperature17.19ºC (62.94ºF)
Average annual precip.8.28mm (0.33in)
Warmest monthAugust (33.24ºC / 91.83ºF)
Coldest MonthFebruary (11.72ºC / 53.1ºF)
Wettest MonthDecember (20.92mm / 0.82in)
Driest MonthJune (0.17mm / 0.01in)
Number of days with rainfall (≥ 1.0 mm)9.45 days (2.59%)
Days with no rain355.55 days (97.41%)
Humidity42.08%

Climate Pomona: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)29.0(84.2)30.0(86.0)30.0(86.0)33.0(91.4)34.0(93.2)38.0(100.4)44.0(111.2)39.0(102.2)44.0(111.2)38.0(100.4)32.0(89.6)27.0(80.6)44.0(111.2)
Average high °C (°F)19.95(67.91)18.47(65.25)18.88(65.98)23.17(73.71)24.19(75.54)28.42(83.16)32.53(90.55)33.24(91.83)31.83(89.29)28.09(82.56)23.19(73.74)18.71(65.68)25.06(77.11)
Daily mean °C (°F)17.09(62.76)15.78(60.4)16.34(61.41)20.19(68.34)21.38(70.48)25.29(77.52)29.2(84.56)29.87(85.77)28.57(83.43)24.83(76.69)20.14(68.25)16.09(60.96)22.06(71.71)
Average low °C (°F)12.8(55.04)11.72(53.1)11.78(53.2)14.83(58.69)16.32(61.38)19.64(67.35)23.56(74.41)24.32(75.78)23.59(74.46)20.14(68.25)15.54(59.97)12.06(53.71)17.19(62.94)
Record low °C (°F)3.0(37.4)6.0(42.8)3.0(37.4)2.0(35.6)11.0(51.8)14.0(57.2)17.0(62.6)14.0(57.2)15.0(59.0)11.0(51.8)7.0(44.6)4.0(39.2)2.0(35.6)
Average precipitation mm (inches)11.31(0.45)17.49(0.69)17.97(0.71)11.78(0.46)1.67(0.07)0.17(0.01)2.25(0.09)0.64(0.03)1.55(0.06)1.34(0.05)12.21(0.48)20.92(0.82)8.28(0.33)
Average precipitation days (≥ 1.0 mm)1.091.02.450.730.550.00.640.270.270.270.911.270.79
Average relative humidity (%)39.8239.250.0647.2149.8547.0441.4640.5139.2636.0335.5738.9942.08
Mean monthly sunshine hours9.6310.5410.4110.9113.6214.2614.1411.4511.5411.188.298.0911.17

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Pomona in recent years.

Pomona

Pomona Temperature by Month

August
29.87°C | 85.77°F
July
29.2°C | 84.56°F
September
28.57°C | 83.43°F
June
25.29°C | 77.52°F
October
24.83°C | 76.69°F
May
21.38°C | 70.48°F
April
20.19°C | 68.34°F
November
20.14°C | 68.25°F
January
17.09°C | 62.76°F
March
16.34°C | 61.41°F
December
16.09°C | 60.96°F
February
15.78°C | 60.4°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature27.0°C (80.6°F)19.84°C (67.71°F)14.0°C (57.2°F)
Avg Temperature22.0°C (71.6°F)17.35°C (63.23°F)12.0°C (53.6°F)
Min Temperature17.0°C (62.6°F)13.68°C (56.62°F)8.0°C (46.4°F)
Dew PointMaxAverageMin
Dew Point9.0°C (48.2°F)1.16°C (34.09°F)-11.0°C (12.2°F)
PrecipitationMaxAverageMinSum
Precipitation27.3mm | 1.07in1.04mm | 0.04in0.0mm | 0in32.3mm | 1.27in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind13.0kmh | 8.08mph5.52kmh | 3.43mph3.0kmh | 1.86mph
Gust Wind18.0kmh | 11.18mph7.74kmh | 4.81mph4.0kmh | 2.49mph
Sea Level PressureMaxAverageMin
Sea Level Pressure27.3mb1.04mb0.0mb
Pomona

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
December° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2018-12-0115 | 59.06 | 42.8556 | 3.7329.94 | 10140.1 | 0.0
2018-12-0215 | 59.0-0 | 32.0394 | 2.4930.03 | 10170.0 | 0.0
2018-12-0317 | 62.6-2 | 28.4335 | 3.1130.15 | 10210.0 | 0.0
2018-12-0419 | 66.2-7 | 19.4208 | 4.9730.06 | 10180.0 | 0.0
2018-12-0514 | 57.2-0 | 32.0417 | 4.3529.94 | 10142.5 | 0.1
2018-12-0613 | 55.46 | 42.86313 | 8.0829.94 | 101427.3 | 1.07
2018-12-0718 | 64.46 | 42.8526 | 3.7330.09 | 10190.0 | 0.0
2018-12-0819 | 66.26 | 42.8444 | 2.4930.27 | 10250.0 | 0.0
2018-12-0920 | 68.05 | 41.0414 | 2.4930.27 | 10250.0 | 0.0
2018-12-1019 | 66.22 | 35.6354 | 2.4930.09 | 10190.0 | 0.0
2018-12-1119 | 66.23 | 37.4375 | 3.1130.06 | 10180.0 | 0.0
2018-12-1218 | 64.48 | 46.4545 | 3.1130.12 | 10200.0 | 0.0
2018-12-1321 | 69.8-6 | 21.2187 | 4.3530.24 | 10240.0 | 0.0
2018-12-1419 | 66.2-10 | 14.0145 | 3.1130.18 | 10220.0 | 0.0
2018-12-1522 | 71.6-8 | 17.6154 | 2.4930.09 | 10190.0 | 0.0
2018-12-1619 | 66.2-2 | 28.4264 | 2.4930.12 | 10200.0 | 0.0
2018-12-1716 | 60.88 | 46.4596 | 3.7330.15 | 10210.1 | 0.0
2018-12-1817 | 62.69 | 48.2615 | 3.1130.18 | 10220.2 | 0.01
2018-12-1921 | 69.84 | 39.2364 | 2.4930.18 | 10220.0 | 0.0
2018-12-2022 | 71.6-1 | 30.2244 | 2.4930.12 | 10200.0 | 0.0
2018-12-2120 | 68.03 | 37.4363 | 1.8630.0 | 10160.0 | 0.0
2018-12-2219 | 66.24 | 39.2413 | 1.8630.06 | 10180.0 | 0.0
2018-12-2318 | 64.46 | 42.8464 | 2.4930.12 | 10200.0 | 0.0
2018-12-2418 | 64.48 | 46.4535 | 3.1130.0 | 10160.0 | 0.0
2018-12-2515 | 59.05 | 41.0576 | 3.7329.85 | 10111.9 | 0.07
2018-12-2616 | 60.82 | 35.6414 | 2.4930.0 | 10160.0 | 0.0
2018-12-2714 | 57.22 | 35.6468 | 4.9729.94 | 10140.0 | 0.0
2018-12-2813 | 55.4-11 | 12.2199 | 5.5930.15 | 10210.0 | 0.0
2018-12-2915 | 59.0-9 | 15.8194 | 2.4930.3 | 10260.0 | 0.0
2018-12-3015 | 59.0-1 | 30.2396 | 3.7330.03 | 10170.0 | 0.0
2018-12-3112 | 53.60 | 32.0519 | 5.5929.91 | 10130.2 | 0.01

Pomona 3 Year Historical Weather Data

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