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Climate in Hockessin · NOAA 1991–2020 normals

Hockessin’s winters are milder and less snowy than most of the U.S.

A typical July afternoon reaches 86°, a January night drops to 24°, and about 12 inches of snow falls in a normal winter.

Less snow than 62% of U.S. towns#7Least snow  of 34 in DE
Milder January nights than 59% of U.S. towns
All DE rankings →

A year in Hockessin at a glance

Each month’s typical high and low, and what it brings.

Jan40°24° 5" snow
Feb43°25° 4" snow
Mar52°32°
Apr64°42° Last frost ~Apr 7
May73°51° 1 day 90°+
Jun82°61° 3 days 90°+
Jul86°66° 8 days 90°+Wettest
Aug85°64° 4 days 90°+
Sep78°57° 1 day 90°+
Oct66°46°
Nov now55°36° First frost ~Nov 4
Dec45°28°

What stands out about Hockessin’s climate

Compared with towns across the U.S., with Hockessin’s place in Delaware beside it.

A normal year

What a year in Hockessin feels like

Typical highs and lows by season and by month, from NOAA’s 30-year normals.

Winter
43° / 26°
4 days with 1"+ of snow
Spring
63° / 42°
Last frost around Apr 7
Summer
84° / 64°
17 days reach 90°
Fall
66° / 46°
First frost around Nov 4
Best months to be outsideAprMayJunSepOctHighs of 62–84° and lows of 40° or more
Frost, heat & the growing season

About 209 frost-free days a year

In half of years the last 32° night comes by April 7 and the first by November 4. Frost and day counts come from NOAA’s station at Wilmington Porter Rsch, DE, 7 miles from the town’s center, at about the same height.

87
nights at or below 32° in a normal year
15th fewest of 34 in Delaware
Fewer freezing nights than 67% of U.S. towns
<1
nights at or below 0°
Fewer nights at or below 0° than 66% of U.S. towns
17
days that reach 90°
3rd fewest of 34 in Delaware
Fewer 90° days than 55% of U.S. towns
<1
days that reach 100°
The fewest of 34 in Delaware
Fewer 100° days than 56% of U.S. towns
7aUSDA zone
Plant hardiness zone 7a

The 2023 USDA map puts Hockessin’s center in zone 7a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 4°. Plant labels use the zone; frost dates tell you when to plant.

Freezing nights by month

Average nights at or below 32°

24
JFMAMJJASOND

90° days by month

Average days at 90° or more

8.2
JFMAMJJASOND
Rain & snow

About 12 inches of snow a winter

Snow, measured at Wilmington Porter Rsch, DE, falls mostly in January. Precipitation (rain plus melted snow) adds up to 48 inches a year; July is the wettest month and February the driest. Rain or snow falls on about 113 days a year.

48"
Rain + melted snow a year
2nd wettest of 34 in Delaware
Wetter than 76% of U.S. towns
12"
Snow in a normal winter
7th least snowy of 34 in Delaware
Less snow than 62% of U.S. towns

Rain + melted snow by month

Inches of water

4.7"
JFMAMJJASOND

Snowfall by month

Inches of snow

5"
JFMAMJJASOND
Heating & cooling

Heating and cooling a home in Hockessin

84% of the work is heating. Months averaging under 55° run from November through April.

5,181 heating degree daysLess heating than 53% of U.S. towns
977 cooling degree daysMore cooling than 54% of U.S. towns

Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Wilmington Porter Rsch, DE.

Living here

Living with Hockessin’s climate

What the numbers mean for a garden, a free afternoon and a bad-weather day.

The garden window

209 frost-free days in zone 7a. The last frost comes by Apr 7 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 4.

Get outside

Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October. 5.0 miles of trails are waiting.

Parks & trails →
Storms and extremes

Of the yearly building losses FEMA expects in Hockessin from natural hazards, river flooding is the largest share (81%); heat waves, cold waves, winter storms and ice storms together are 8%. Normals are averages; the hazards page covers the extremes.

Natural hazards →
Next door

Hockessin and its neighbors

Every town next door is within a degree of Hockessin in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.

London Britain Township: January low 23°, July high 86°Pike Creek Valley: January low 24°, July high 87°North Star: January low 23°, July high 86°Pike Creek: January low 24°, July high 87°Hockessin: January low 24°, July high 86°HockessinNorth StarPike Creek
ColderMilder23° to 24°
North Star23.4° about the same
Hockessin23.6°
Pike Creek24.1° about the same

Climates most like Hockessin’s, farther away

TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.

TownJan. lowJuly highPrecip.Snow
Hockessin, DE24°86°48"12"
Scottsburg, IN23°87°48"12"
Paris, KY24°87°49"15"
Huntington, WV25°87°46"10"
Forest, VA26°87°47"12"

Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.

Then and now

Warmer than it used to be

The last 30 years in Hockessin averaged 1.9° warmer than the 1900s. The biggest change is in December (+3.4°).

+1.9°1991–2020 vs. 1901–2000

A bigger shift than in 83% of U.S. towns.

Winter+2.7°now 34°, was 32°
Spring+1.5°now 52°, was 51°
Summer+1.7°now 74°, was 72°
Fall+1.5°now 56°, was 55°

Change by month

JanFebMarAprMayJunJulAugSepOctNovDec

The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.

Compared with other towns

How Hockessin compares

Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Hockessin’s place among Delaware’s.

Summer heat86° July high
Hotter July afternoons than 58% of U.S. towns31st hottest of 34 in Delaware
Winter cold24° January low
Milder January nights than 59% of U.S. towns33rd mildest of 34 in Delaware
Precipitation48" a year
Wetter than 76% of U.S. towns2nd wettest of 34 in Delaware
Snow12" a winter
Less snow than 62% of U.S. towns7th least snowy of 34 in Delaware
Hot days17 days at 90°+
Fewer 90° days than 55% of U.S. towns3rd fewest of 34 in Delaware
Freezing nights87 a year
Fewer freezing nights than 67% of U.S. towns15th fewest of 34 in Delaware
Growing season209 frost-free days
A longer frost-free season than 74% of U.S. towns
Month by month

Hockessin weather by month

Highs, lows and precipitation from NOAA’s grid at Hockessin’s center; snow, wet days and snow on the ground from Wilmington Porter Rsch, DE. 1991–2020 normals.

MonthHighLowRain + meltSnowWet days30-yr range
January40°24°3.4"5.3"1024° – 39°
February43°25°2.9"4.0"924° – 42°
March52°32°4.3"1.8"1137° – 50°
April64°42°3.8"0.0"1049° – 58°
May73°51°3.7"0.0"1158° – 68°
June82°61°4.5"0.0"1068° – 76°
July86°66°4.7"0.0"972° – 80°
August85°64°4.4"0.0"970° – 78°
September78°57°4.7"0.0"964° – 71°
October66°46°4.1"0.0"851° – 62°
November55°36°3.4"0.1"839° – 50°
December45°28°4.1"0.8"1029° – 49°
Year64°44°48.1"12.0"113
Year to year

How much a month can swing

A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 29° to 49°. September is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal
Sources

Where Hockessin’s numbers come from

Normals are 30-year averages, not a forecast. How TownRatings reads climate data →

  • Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Hockessin’s center.
  • Snow: Wilmington Porter Rsch, DE.
  • Frost, freezing nights, 90° and 100° days, heating and cooling: Wilmington Porter Rsch, DE, 7 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
  • Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
  • Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
  • Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).

Common questions about Hockessin’s climate

What is the weather like in Hockessin?

A typical July afternoon reaches 86°, a January night drops to 24°, and about 12 inches of snow falls in a normal winter. Milder January nights than 59% of U.S. towns; hotter July afternoons than 58% of U.S. towns.

How cold does it get in Hockessin in winter?

January nights average 24°. About 87 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 24°.

How much snow does Hockessin get?

About 12 inches in a normal winter at Wilmington Porter Rsch, DE, most of it in January.

How hot does it get in Hockessin?

July, with a typical high of 86° and a low of 66°. About 17 days a year reach 90° (Wilmington Porter Rsch, DE).

When is the first and last frost in Hockessin?

In half of years the last spring frost (32°) comes by April 7 and the first fall frost by November 4, about 209 frost-free days, at Wilmington Porter Rsch, DE.

What growing zone is Hockessin in?

Zone 7a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 4°.

What is the best time of year to visit Hockessin?

By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.

Is Hockessin getting warmer?

Yes: 1991–2020 averaged 1.9° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 83% of U.S. towns.

Neighbors talk weather

Gardens, snow, and the best days of the year in Hockessin.

Town Square →
Ask your neighbors

Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.