Chatham Exp Farm, MI Climate: Temperature & Rain by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from Chatham Exp Farm's primary NOAA station, CHATHAM EXP FARM 2.
The climate verdict for Chatham Exp Farm
Chatham Exp Farm, Michigan has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 41°F. At 44/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 10% of scores.
- 41°F
- annual average temperature (NOAA normal)
- 44/100
- comfort score, above 10% of station-mapped location scores
- 35.1"
- annual precipitation · 164" snow
- 120 days
- frost-free growing season
Chatham Exp Farm: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00201486 · Chatham Exp Farm, MI 41°F mean · 35.1" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-MID · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 41°F
- RANK-COOL #549
- PHOTO-FINISH ≈ Superior
- PRCP-MID 35.1"
- SWING-WIDE 50°F
- COMF-LOW 44/100
- LOAD-HEAT 8,818 HDD
- STN-1 USC00201486
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Superior, WI (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every MI station list.
- Hot Ashland Kennedy…, WI 42°F
- Chatham (this station) 41°F
- Cold Chester, MT 41°F
- Near Superior, WI 41°F
- Near Sandstone, MN 41°F
Climate Living Index · Chatham Exp Farm
Chatham Exp Farm: 27/100 · grade F
Chatham Exp Farm publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Chatham Exp Farm, not an official NOAA rating. Rankings still use Comfort Score 44/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 35.1 in · 0.1 from 35 in | 96/100 · A |
| Normal heat + freeze calendar | 185 calendar days | 22/100 · F |
| Annual temperature balance | 41.4°F · 26.1° from 67.5°F | 8/100 · F |
| Frost-free season | 120 days/year | 7/100 · F |
| Snowfall burden | 164.0 inches/year | 0/100 · F |
Chatham Exp Farm · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Chatham Exp Farm is a continental Köppen climate: Dfb
Coldest-month mean 16.2°F and warmest-month mean 65.8°F place this station in continental, no dry season, warm summer climates (Dfb). Class Dfb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, warm summer.
- Köppen code
- Dfb
- Group
- Continental
- Warmest month
- 65.8°F
- Coldest month
- 16.2°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Chatham Exp Farm sits across the climate record
Three NOAA fields for Chatham Exp Farm's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 92%
- Among 6,861 stations, Chatham Exp Farm sits in the cooler third of annual means.
- Annual precipitation
- 48th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Wider than 80%
- Warmest-to-coldest month gap for Chatham Exp Farm is large versus 6,861 complete station-years.
How Chatham Exp Farm compares across U.S. station-mapped locations
Chatham Exp Farm's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
44 10th percentile score exceeds 10% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). This entry sits in this band.
- 50–60: 1,329 station-mapped locations (21%). Above this entry.
- 60–70: 1,236 station-mapped locations (20%). Above this entry.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Chatham Exp Farm's measured station temperature trend
MethodologyAcross 108 complete annual observations from 1902 to 2025, CHATHAM EXP FARM 2 warmed at a fitted rate of 0.14°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Chatham Exp Farm primary station fitted change +0.14 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 25°F (-4°C) | 8°F (-13°C) | 16°F (-9°C) | 2.0" | 45.6" | 30.9 | 0.0 |
| February | 27°F (-3°C) | 7°F (-14°C) | 17°F (-8°C) | 1.5" | 29.7" | 27.7 | 0.0 |
| March | 37°F (3°C) | 15°F (-9°C) | 26°F (-3°C) | 1.7" | 18.6" | 29.0 | 0.0 |
| April | 48°F (9°C) | 27°F (-3°C) | 38°F (3°C) | 2.4" | 11.8" | 23.8 | 0.0 |
| May | 63°F (17°C) | 39°F (4°C) | 51°F (11°C) | 3.3" | 0.6" | 9.2 | 0.2 |
| June | 73°F (23°C) | 48°F (9°C) | 61°F (16°C) | 3.4" | 0.0" | 0.9 | 1.1 |
| July | 78°F (26°C) | 54°F (12°C) | 66°F (19°C) | 3.6" | 0.0" | 0.1 | 2.4 |
| August | 77°F (25°C) | 53°F (12°C) | 65°F (18°C) | 3.0" | 0.0" | 0.1 | 1.1 |
| September | 69°F (20°C) | 46°F (8°C) | 58°F (14°C) | 4.3" | 0.0" | 1.7 | 0.3 |
| October | 55°F (13°C) | 35°F (2°C) | 45°F (7°C) | 4.7" | 2.5" | 14.6 | 0.0 |
| November | 40°F (5°C) | 25°F (-4°C) | 33°F (0°C) | 2.9" | 18.9" | 24.8 | 0.0 |
| December | 30°F (-1°C) | 15°F (-10°C) | 22°F (-5°C) | 2.3" | 36.3" | 30.4 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 78°F around July 18, short of 90°F on every date, while 185 dates carry a normal low at or below freezing, the coldest 6°F near February 2.
The freezing stretch
The normal low stays at or below 32°F into April 27, then returns to freezing around October 26, covering 185 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is January 13, when 64% of years recorded at least a hundredth of an inch. The driest is April 8 at 36%. Summed across the calendar, that is about 173 wet dates a year.
The widest day
June 4 carries the biggest normal gap between afternoon and dawn, 25°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Chatham Exp Farm.
Where Chatham Exp Farm Stands Nationally
Freezing is routine here by normals standards — the normal low reaches 32°F or colder on about 185 nights a year, more than most ranked stations.
Chatham Exp Farm earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 45.6"
20.3 days with precipitation
Snow: 29.7"
14.3 days with precipitation
Snow: 18.6"
11.6 days with precipitation
Snow: 11.8"
11.0 days with precipitation
Snow: 0.6"
13.3 days with precipitation
12.3 days with precipitation
12.9 days with precipitation
11.9 days with precipitation
15.2 days with precipitation
Snow: 2.5"
17.4 days with precipitation
Snow: 18.9"
15.2 days with precipitation
Snow: 36.3"
17.0 days with precipitation
Chatham Exp Farm spreads its precipitation across the year
Neither half of the year dominates here: June through August take 28% of the annual total and December through February 17%, with neither reaching the 35% that would mark a distinct wet season. Chatham Exp Farm has no dry season to plan around, though it does carry a wide 49.6°F gap between its warmest and coldest month.
The gap between the wettest and driest month still matters: October averages 4.7" and February 1.5". The three wettest months together take 36% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
How Chatham Exp Farm's precipitation splits across the calendar
About 172 days a year record measurable precipitation here, carrying 35.1" between them, or roughly 0.20 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Winter brings real snow to Chatham Exp Farm
Chatham Exp Farm averages 164.0 inches of snowfall a year, with January the snowiest month on the normals, spread across roughly 68 days that record measurable snow. That is depth accumulating on the ground, which is why it can exceed the annual precipitation figure: precipitation counts the liquid the snow melts down to, and fresh snow is mostly air.
- Annual snowfall: 164.0 inches of depth.
- Days recording measurable snow: about 68 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 47% of the year's precipitation.
NOAA 1991-2020 normals. The ten-to-one ratio is a convention, not a measurement: real ratios vary with temperature, so treat the share as an order of magnitude rather than an exact split.
Frost Dates & Growing Season
First Fall Freeze
September 27
50% probability date
Last Spring Freeze
May 30
50% probability date
Growing Season
120 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
8,818
Higher = more heating needed
Cooling Degree Days
253
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside MI closest to Chatham Exp Farm on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (41°F here).
- Angel Fire, NM 41°F · 0.0°F off
- Antigo, WI 41°F · 0.0°F off
- Couderay, WI 41°F · 0.0°F off
- Fargo, ND 41°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (35.1" here), excluding temperature-peer places.
- Fort Dodge, IA 35.1" · 0.0" off
- Friendship, WI 35.1" · 0.0" off
- Hicksville, OH 35.1" · 0.0" off
- Stillwater, MN 35.1" · 0.0" off
Snow and freeze rhythm
When cold and snow define Chatham Exp Farm
heating led · moderate · mid swing
Chatham Exp Farm's energy balance leans toward cold weather: 8,818 annual heating degree days against 253 for cooling. Its 49.6°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 120 days are frost-free in a normal year. That short interval is consistent with the cold-season signal, but the measure does not predict the exact first or last freeze in any one year.
-
1. Chatham Exp Farm coldest normal
January
Averaging 16°F (-9°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Chatham Exp Farm typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Chatham Exp Farm snow peak
January
Chatham Exp Farm averages 164.0 inches of snow a year, with January the snowiest month on the normals.
Questions about Chatham Exp Farm's climate
How much snow does Chatham Exp Farm get? ▼
How cold does Chatham Exp Farm get in winter? ▼
How much energy does heating and cooling require in Chatham Exp Farm? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Chatham Exp Farm's primary station: CHATHAM EXP FARM 2 (USC00201486). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Chatham Exp Farm; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Chatham Exp Farm comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.