Climate Comfort Score
58/100
Moderate
Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Wilmington Porter Rsch
Wilmington Porter Rsch, Delaware averages 53°F a year and scores 58/100 on the comfort index - moderate, milder than 38% of U.S. cities.
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
53°F (12°C)
Avg High
62°F
Avg Low
45°F
Annual Precip
50.3"
Annual Snow
12.0"
Comfort Score
58/100
Moderate
Climate Comfort Score
58/100
Moderate
Avg Annual Temperature
53°F
30-year mean (NOAA NCEI)
Annual Precipitation
50.3"
Plus 12.0" of snow
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Wilmington Porter Rsch area.
Wilmington Porter Rsch's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
58 Top 62% higher than 38% of 6,915 US cities
Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
The chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Wilmington Porter Rsch, the NOAA 1991-2020 normal captures average conditions across that spread - notably, the most recent decade runs warmer than the 30-year mean itself.
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 38°F (3°C) | 24°F (-5°C) | 31°F (-1°C) | 3.7" | 5.3" | 23.6 | 0.0 |
| February | 41°F (5°C) | 25°F (-4°C) | 33°F (1°C) | 3.0" | 4.0" | 20.9 | 0.0 |
| March | 49°F (10°C) | 32°F (0°C) | 41°F (5°C) | 4.7" | 1.8" | 13.4 | 0.0 |
| April | 61°F (16°C) | 43°F (6°C) | 52°F (11°C) | 4.1" | 0.0" | 1.7 | 0.0 |
| May | 71°F (21°C) | 52°F (11°C) | 62°F (16°C) | 3.8" | 0.0" | 0.1 | 0.9 |
| June | 79°F (26°C) | 62°F (17°C) | 71°F (21°C) | 4.7" | 0.0" | 0.0 | 3.2 |
| July | 84°F (29°C) | 67°F (20°C) | 76°F (24°C) | 5.2" | 0.0" | 0.0 | 8.2 |
| August | 82°F (28°C) | 66°F (19°C) | 74°F (23°C) | 4.4" | 0.0" | 0.0 | 4.1 |
| September | 75°F (24°C) | 59°F (15°C) | 67°F (19°C) | 5.1" | 0.0" | 0.0 | 0.9 |
| October | 63°F (17°C) | 47°F (8°C) | 55°F (13°C) | 4.1" | 0.0" | 0.3 | 0.0 |
| November | 53°F (11°C) | 37°F (3°C) | 45°F (7°C) | 3.3" | 0.1" | 7.9 | 0.0 |
| December | 43°F (6°C) | 29°F (-2°C) | 36°F (2°C) | 4.4" | 0.8" | 19.1 | 0.0 |
Average monthly rainfall and snowfall
Snow: 5.3"
10.2 days with precipitation
Snow: 4.0"
9.0 days with precipitation
Snow: 1.8"
10.7 days with precipitation
10.3 days with precipitation
10.5 days with precipitation
10.1 days with precipitation
9.2 days with precipitation
8.5 days with precipitation
8.8 days with precipitation
8.3 days with precipitation
Snow: 0.1"
7.9 days with precipitation
Snow: 0.8"
9.8 days with precipitation
First Fall Freeze
November 4
50% probability date
Last Spring Freeze
April 7
50% probability date
Growing Season
211 days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,181
Higher = more heating needed
Cooling Degree Days
977
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Wilmington Porter Rsch's climate means for you
Wilmington Porter Rsch runs 53°F a year - peaking in July, coldest in January.
These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.
The NOAA 1991–2020 climate normals describe Wilmington Porter Rsch, Delaware as a location with an annual average temperature of 53°F, ranging from a mean daily high of 62°F to a mean daily low of 45°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00079605, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.
Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Wilmington Porter Rsch sees about 50.3 inches of precipitation a year, with 12.0 inches typically falling as snow. The frost-free season averages 211 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 7 and the first fall freeze near November 4. On the energy side, 5,181 heating degree days and 977 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Wilmington Porter Rsch scores 58/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above turn that into a planning tool: expect the mildest highs and lows in the shoulder seasons, July-driven heat at the peak of summer, and January-driven cold at the depth of winter. Every number here is a thirty-year average, not a forecast, so any given year can and does run warmer, cooler, wetter, or drier than the normal.
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00079605. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.