Climate · Blades

Blades, DE climate

Blades has chilly winters and warm summers. A typical July afternoon reaches 89°, a January night drops to 27°, and about 13 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
89°
1st hottest of 79 Delaware towns
January low
27°
30th mildest of 79 Delaware towns
Rain + melted snow
46 in
39th driest of 79 Delaware towns
Snow a winter
13 in
34th least snowy of 79 Delaware towns
A normal year

What a year in Blades feels like

Winter

48° / 28°
Typical high / low · 4 days with an inch or more of snow

Spring

66° / 43°
Typical high / low · Last frost around Apr 11

Summer

86° / 65°
Typical high / low · 22 days reach 90° in a normal year

Fall

70° / 48°
Typical high / low · First frost around Oct 30
Best months to be outsideAprMaySepOctHighs of 62–84° and lows of 40° or more
Month by month

Blades weather by month

Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January46°27°3.5" 3.3"93 29° – 43°
February48°28°3.0" 5.9"86 27° – 45°
March56°34°4.1" 1.6"111 40° – 54°
April67°43°3.4" 0.2"100 51° – 61°
May76°53°3.7" 0100 59° – 71°
June84°62°4.0" 0100 68° – 78°
July89°67°4.3" 090 73° – 82°
August86°65°5.1" 080 72° – 79°
September80°59°4.2" 080 66° – 75°
October70°47°3.9" 090 54° – 64°
November59°37°3.2" 080 42° – 53°
December50°30°3.7" 1.8"102 31° – 51°
Year68°46°46.0"12.8"11212

“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.

Rain & snow

Rain and snow in Blades

Blades gets 46 inches of rain and melted snow a year. August is the wettest month and February the driest. Rain or snow falls on about 112 days a year. Snow covers the ground about 12 days of the year.

46 in
Rain + melted snow a year
More rain than 73% of U.S. towns
13 in
Snow in a normal winter
Less snow than 68% of U.S. towns
12 days
With 1"+ of snow on the ground
Fewer than 67% of U.S. towns

Rain + melted snow by month

Inches of water
5.1"

Snowfall by month

Inches of snow
5.9"
Frost & the growing season

About 200 frost-free days a year

In half of years the last 32° night comes by April 11 and the first one by October 30. That leaves about 200 frost-free days for gardens, longer than 72% of U.S. towns.

96
nights at or below 32° in a normal year
<1
nights below 0° in a normal year
22
days that reach 90° in a normal year

Freezing nights by month

Average nights at or below 32°

90° days by month

Average days at 90° or more
Heating & cooling

Heating and cooling a home in Blades

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Blades, 80% of that work is heating and 20% is cooling, so the furnace matters far more than the air conditioner.

80%heating
4,592 heating degree daysLess heating than 72% of U.S. towns
1,135 cooling degree daysMore cooling than 66% of U.S. towns

Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.

Compared with other towns

How Blades compares

Summer heat89° July high
Hotter than 74% of U.S. towns1st hottest of 79 Delaware towns
Winter cold27° January low
Milder than 76% of U.S. towns30th mildest of 79 Delaware towns
Precipitation46" a year
Wetter than 73% of U.S. towns39th driest of 79 Delaware towns
Snow13" a winter
Less snow than 68% of U.S. towns34th least snowy of 79 Delaware towns
Growing season200 frost-free days
Longer than 72% of U.S. towns10th shortest of 79 Delaware towns

Compared with every U.S. town and city on TownTapestry, each counted once.

Then and now

Warmer than it used to be

+2.0°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Blades averaged 2.0° warmer than the 1900s. The biggest change is in December (+3.1°). The shift is larger than in 94% of U.S. towns.

❄️ Winter+2.5° now 38°, was 36°
🌷 Spring+1.9° now 55°, was 53°
☀️ Summer+1.9° now 76°, was 74°
🍂 Fall+1.6° now 59°, was 57°

Change by month1991–2020 average minus 1901–2000 average, at Blades’s spot on NOAA’s grid

Year to year

How much a month can swing

A normal is an average, and real years wander around it. December swings the most: between 1991 and 2020 its average temperature ranged from 31° to 51°. August is the most reliable, staying within 7°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Blades’s climate

What is the coldest month in Blades?

January, with a typical high of 46° and a low of 27°.

What is the hottest month in Blades?

July, with a typical high of 89° and a low of 67°. About 22 days a year reach 90°.

How much snow does Blades get?

About 13 inches in a normal winter, most of it in February.

When is the first frost in Blades?

In half of years the first 32° night comes by October 30, and the last spring frost by April 11.

What is the rainiest month in Blades?

August, with 5.1 inches of rain and melted snow. The year totals 46 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Blades itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Greenwood 2ne, DE (13 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.

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