Climateby Month

Dover, DE weather in June

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

Expect warm, often humid weather with some rain in Dover in June, with highs near 83°F and lows near 64°F. Rain falls on about 9 days.

Normal high
83°F
Normal low
64°F
Wet days
9
4.6 in total
Muggy days
14
dew point 65°F+

How June changes from start to finish

Normal values at the start and end of June
June 1June 30
Normal high78°F86°F
Normal low59°F68°F
Chance of a wet day33%28%
Sunrise / sunset5:37 am / 8:22 pm5:39 am / 8:32 pm
Daylight14.7 h14.9 h

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

A typical June day

  1. 6 am67°Fdew point 64°F
  2. 9 am74°Fdew point 64°F
  3. Noon79°Fdew point 63°F
  4. 3 pm80°Fdew point 63°F
  5. 6 pm77°Fdew point 63°F
  6. 9 pm71°Fdew point 63°F

NOAA hourly normals (local standard time) from Dover AFB (4 mi away); average wind 8 mph; clear or few clouds in 44% of daytime hours, mostly cloudy or overcast in 43%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F6 of 30
  • Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph15 of 30
  • Hot dayshigh 90°F or more5 of 30
  • Muggy daysdaily mean dew point 65°F or more14 of 30
  • Wet daysat least 0.01 in of rain or melted snow9 of 30
  • Notable rainat least 0.10 in7 of 30
  • Freezing nightslow 32°F or below0 of 30
  • Snow on the groundsnow depth 1 in or more0 of 30

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

Rain in June

Normal precipitation is 4.6 in; a dry June brings about 2.5 in and a wet one about 5.8 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.

How June varies from year to year

  • Warmest June, 1991-20202010: average high 90°F
  • Coolest June1992: average high 78°F
  • Wettest June1996: 9.9 in
  • Driest June1993: 0.9 in
  • Highest reading99°F (June 16, 1991)
  • Lowest reading45°F (June 5, 1997)

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 high74°F83°F87°F
Normal low54°F64°F69°F
Wet days1099
Comfortable days1561
Daylight14.3 h14.9 h14.6 h

Highs change by +9°F from May and +4°F into July.

Nearby alternatives in June

How Dover ranks in June

  • Normal high198th warmest of 378 cities; 1st of 2 in Delaware
  • Wet days164th driest of 378
  • Comfortable days169th most of 340

What to pack for Dover in June

  • A rain jacket or umbrella – rain on about 9 days
  • A swimsuit – about 15 beach days
  • Sunglasses and sunscreen – about 14.9 hours of daylight and highs near 83°F

Heating and cooling

June has 12 heating degree days and 259 cooling degree days (base 65°F), 5% of the year's total heating and cooling demand.

Questions

How hot is Dover in June?

The normal high is 83°F and the normal low is 64°F. From 1991 to 2020 the hottest June reading was 99°F (June 16, 1991).

Does it rain a lot in Dover in June?

About 9 days in June have at least 0.01 in of precipitation, and the normal total is 4.6 in. The wettest June in 1991-2020 was in 1996 (9.9 in); the driest was in 1993 (1.0 in).

Is June a good time to visit Dover?

June ranks 5th of 12 months on our comfort score for Dover (59 out of 100). It has about 6 comfortable days and about 5 days at 90°F or hotter. The best month is May.

Where the numbers come from

  • Temperature, rain, snowfall, snow depth and frost dates: Dover (USC00072730), 1.3 mi SE of the city center, 30 ft . NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour and cloud cover: Dover AFB (USW00013707), 3.5 mi ESE of the city center, 23 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Dover AFB Airport (724088-13707), 3.5 mi ESE of the city center, 28 ft . Hourly observations, 1991-2020.