Climateby Month

Pomona, CA weather in June

NOAA 1991-2020 normals and daily records · Pomona all year

June in Pomona: warm and dry. Highs 86°F, lows 60°F, about 2 days with rain.

Normal high
86°F
Normal low
60°F
Wet days
2
0.2 in total
Daylight
14.4 h

How June changes from start to finish

Normal values at the start and end of June
June 1June 30
Normal high82°F91°F
Normal low58°F63°F
Chance of a wet day8%4%
Sunrise / sunset5:40 am / 7:57 pm5:42 am / 8:06 pm
Daylight14.3 h14.4 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).

A typical June day

  1. 6 am62°Fdew point 54°F
  2. 9 am69°Fdew point 55°F
  3. Noon78°Fdew point 55°F
  4. 3 pm79°Fdew point 54°F
  5. 6 pm74°Fdew point 54°F
  6. 9 pm67°Fdew point 55°F

NOAA hourly normals (local standard time) from Burbank Glendale Pasadena Airport (36 mi away); average wind 6 mph; clear or few clouds in 81% of daytime hours, mostly cloudy or overcast in 16%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F (temperature only: no humidity station nearby)7 of 30
  • Hot dayshigh 90°F or more11 of 30
  • Wet daysat least 0.01 in of rain or melted snow2 of 30
  • Notable rainat least 0.10 in1 of 30
  • Freezing nightslow 32°F or below0 of 30

Average days per June, counted from daily records for each year 1991-2020.

Rain in June

Normal precipitation is 0.2 in; a dry June brings about 0.0 in and a wet one about 0.2 in (25th and 75th percentiles). Days with half an inch or more are rare.

How June varies from year to year

  • Warmest June, 1991-20202008: average high 91°F
  • Coolest June1998: average high 79°F
  • Wettest June1993: 1.7 in
  • Driest June1996: no measurable precipitation
  • Highest reading112°F (June 20, 2016)
  • Lowest reading46°F (June 5, 1999)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

June compared with May and July

MayJuneJuly
Normal high80°F86°F94°F
Normal low56°F60°F65°F
Wet days421
Comfortable days1671
Daylight13.9 h14.4 h14.2 h

Highs change by +6°F from May and +8°F into July.

Nearby alternatives in June

How Pomona ranks in June

  • Normal high145th warmest of 378 cities; 23rd of 60 in California
  • Wet days68th driest of 378

What to pack for Pomona in June

  • Light, breathable clothing – highs near 86°F
  • Layers – afternoons near 86°F but nights near 60°F
  • Sunglasses and sunscreen – about 14.4 hours of daylight and highs near 86°F

Heating and cooling

June has 4 heating degree days and 250 cooling degree days (base 65°F), 8% of the year's total heating and cooling demand.

Questions

How hot is Pomona in June?

The normal high is 86°F and the normal low is 60°F. From 1991 to 2020 the hottest June reading was 112°F (June 20, 2016).

Does it rain a lot in Pomona in June?

About 2 days in June have at least 0.01 in of precipitation, and the normal total is 0.2 in. The wettest June in 1991-2020 was in 1993 (1.7 in); the driest was in 1996, with no measurable precipitation.

Is June a good time to visit Pomona?

June ranks 9th of 12 months on our comfort score for Pomona (60 out of 100). It has about 7 comfortable days (judged by temperature only) and about 11 days at 90°F or hotter. The best months are March, April and May.

Where the numbers come from

  • Temperature: Ontario Intl Airport (USW00003102), 8.7 mi E of the city center, 949 ft (100 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Rain: San Gabriel Canyon PH (USC00047776), 11 mi NW of the city center, 744 ft (105 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Snowfall and snow depth: Covina City Yard Fc387b (USC00042090), 7.7 mi WNW of the city center, 607 ft (242 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Frost dates: Pomona/Fairplex (USC00047050), 2.0 mi NNW of the city center, 999 ft (150 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour and cloud cover: Burbank Glendale Pasadena Airport (USW00023152), 36 mi WNW of the city center, 741 ft (108 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Not available for this location: daily humidity and wind (no station close enough or similar enough in elevation).