Climate Comfort Score
59/100
Moderate
Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Howell Wwtp
Howell Wwtp, Michigan averages 48°F a year and scores 59/100 on the comfort index - moderate, milder than 39% 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
48°F (9°C)
Avg High
59°F
Avg Low
37°F
Annual Precip
33.1"
Annual Snow
33.2"
Comfort Score
59/100
Moderate
Climate Comfort Score
59/100
Moderate
Avg Annual Temperature
48°F
30-year mean (NOAA NCEI)
Annual Precipitation
33.1"
Plus 33.2" of snow
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Howell Wwtp area.
Howell Wwtp's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
59 Top 61% higher than 39% 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
Howell Wwtp's NOAA 1991-2020 normal sits inside a longer story: U.S. land temperatures have been tracking (and drifting from) the global mean since 1900, and the chart below shows that spread, with the most recent decade running warmer than the 30-year mean.
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 31°F (0°C) | 14°F (-10°C) | 23°F (-5°C) | 2.1" | 10.4" | 29.3 | 0.0 |
| February | 35°F (2°C) | 15°F (-10°C) | 25°F (-4°C) | 1.6" | 7.9" | 27.3 | 0.0 |
| March | 44°F (7°C) | 24°F (-5°C) | 34°F (1°C) | 2.0" | 4.1" | 26.0 | 0.0 |
| April | 58°F (14°C) | 34°F (1°C) | 46°F (8°C) | 2.9" | 0.7" | 12.3 | 0.0 |
| May | 69°F (21°C) | 45°F (7°C) | 57°F (14°C) | 3.6" | 0.0" | 2.0 | 0.5 |
| June | 79°F (26°C) | 55°F (13°C) | 67°F (19°C) | 3.7" | 0.0" | 0.0 | 2.7 |
| July | 83°F (28°C) | 58°F (14°C) | 71°F (21°C) | 3.0" | 0.0" | 0.0 | 5.4 |
| August | 81°F (27°C) | 57°F (14°C) | 69°F (21°C) | 3.6" | 0.0" | 0.0 | 2.7 |
| September | 75°F (24°C) | 49°F (9°C) | 62°F (17°C) | 3.1" | 0.0" | 0.4 | 1.5 |
| October | 62°F (17°C) | 38°F (4°C) | 50°F (10°C) | 2.9" | 0.0" | 9.0 | 0.0 |
| November | 48°F (9°C) | 29°F (-2°C) | 39°F (4°C) | 2.4" | 1.2" | 19.4 | 0.0 |
| December | 36°F (2°C) | 21°F (-6°C) | 29°F (-2°C) | 2.0" | 8.9" | 28.7 | 0.0 |
Average monthly rainfall and snowfall
Snow: 10.4"
13.1 days with precipitation
Snow: 7.9"
9.9 days with precipitation
Snow: 4.1"
10.1 days with precipitation
Snow: 0.7"
12.6 days with precipitation
12.8 days with precipitation
11.4 days with precipitation
10.5 days with precipitation
10.3 days with precipitation
9.8 days with precipitation
12.0 days with precipitation
Snow: 1.2"
11.3 days with precipitation
Snow: 8.9"
13.0 days with precipitation
First Fall Freeze
October 7
50% probability date
Last Spring Freeze
May 4
50% probability date
Growing Season
156 days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,885
Higher = more heating needed
Cooling Degree Days
542
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Howell Wwtp's climate means for you
Howell Wwtp runs 48°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.
An annual average temperature of 48°F, ranging from a mean daily high of 59°F to a mean daily low of 37°F is what the NOAA 1991–2020 climate normals report for Howell Wwtp, Michigan. July is typically the warmest month of the year, while January is the coldest. That baseline comes from station USC00203947 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.
Howell Wwtp averages 33.1 inches of precipitation a year, with 33.2 inches typically falling as snow, and that matters as much to daily life here as temperature does. The frost-free season averages 156 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 4 and the first fall freeze near October 7. As for energy demand, 6,885 heating degree days and 542 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Howell Wwtp scores 59/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, July-driven heat peaks in summer, and January-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00203947. 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.