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Alanson, MI Weather
Alanson, Michigan sits at 45.4425, -84.7869. Its warmest month is July, when the day usually reaches 79F, and its coldest is February, when the night usually falls to 8F. October is the wettest, with rain on about 16 days. The hottest day in the station record is 99F on June 19, 1995, and the coldest night -37F on January 23, 1948. This page carries live conditions, an hour by hour timeline, a ten day outlook, radar, monthly averages and searchable daily history back to 1940.
About Alanson weather
Alanson sits at 45.4425, -84.7869 and covers about 0.98 square miles. The forecast above is live: current conditions lead with the HRRR model, corrected against the nearest reporting station and against radar overhead, because a model can lag a storm and the radar cannot.
The tabs at the top of this page carry the hour by hour timeline, the ten day outlook and live radar. Where the models disagree about a day, the rock says so on the day rather than quietly picking a winner.
The rock grades itself against what actually happened and publishes the result whether it flatters it or not. Those standings live in the Receipts.
Where these numbers come from
Current conditions and forecast: NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
Radar: NOAA MRMS merged reflectivity, rendered into tiles by myweatherrock.
Monthly averages and records: computed by myweatherrock from NOAA GHCN-Daily station records at the nearest qualifying station, named on this page with its distance. Measurements, not estimates.
Daily history search: the town's own NOAA GHCN-Daily station file, held on our server, measurements by day. Months the station missed fall back to the Open-Meteo historical archive (reanalysis), and the page says so when it does.
What the weather is usually like in Alanson
Alanson is warmest in July, when the day usually reaches 79F, and coldest in February, when the night usually falls to 8F. October is the wettest month, with rain on about 16 days of it.
Usual high and low, by month
Days with rain, by month
The same year as numbers
Month
Usual high
Usual low
Rain days
Snow days
January
26F
10F
15
6
February
28F
8F
11
4
March
38F
17F
10
3
April
51F
28F
11
1
May
66F
39F
11
0
June
76F
49F
10
0
July
79F
54F
10
0
August
78F
52F
10
0
September
70F
45F
12
0
October
56F
36F
16
0
November
43F
28F
15
3
December
32F
19F
15
4
Thirty-year normals, 1991 to 2020, computed from the daily record, measured at the Pellston Rgnl Ap station 8.4 miles away. A rain day means at least a hundredth of an inch fell, the same measurable-precipitation mark the Weather Service uses. Source: computed from the station record, NOAA GHCN daily.
Alanson weather history, back to 1940
Pick any month back to 1940 and see what the archive holds for Alanson: the reanalysis record of what happened, day by day.
Reading this month last year to start you off.
Alanson weather records
In 103,802 days of observations Alanson has been as hot as 99F and as cold as -37F. Not averages: the actual days.
Hottest day
99F
June 19, 1995
Coldest night
-37F
January 23, 1948
Wettest day
4.17 in
August 19, 1968
Biggest snow
24.0 in
December 26, 2001
NOAA GHCN daily station records, observed 1948 to 2025: temperature at the Pellston Rgnl Ap station, 8.4 miles away; snowfall at the Petoskey station, 10.4 miles away. Station measurements, not estimates. Record dates reflect the station's own observation schedule, and the official state record may live at a different station.
Common questions about Alanson weather
Common questions
What is the weather usually like in Alanson, MI?
Alanson is warmest in July, when the day usually reaches 79F, and coldest in February, when the night usually falls to 8F. Rain falls on roughly 146 days a year, most often in October. Averages are thirty-year normals, 1991 to 2020, computed from the nearest NOAA station's own daily record.
How much does it rain in Alanson, MI?
About 146 days a year see at least a hundredth of an inch, which is the Weather Service's measurable-precipitation mark. October is the wettest month with rain on about 16 of its days, and March the driest with about 10.
Does it snow in Alanson, MI?
Yes. Snow falls on about 21 days a year, most often in January, which averages about 6 snowy days. Those are days with measurable snowfall, not days with snow lying on the ground.
What is the hottest it has ever been in Alanson, MI?
The hottest day measured for Alanson reached 99F on June 19, 1995, and the coldest night -37F on January 23, 1948. Both are real NOAA station measurements from the GHCN daily archive, observed 1948 to 2025, at the Pellston Rgnl Ap station. Not estimates, though the official state record may live at a different station.
Can I look up past weather for Alanson, MI?
Yes, and for free. The History tab on this page takes any month back to 1940 and shows every day of it: the high, the low, what fell, and that month's hottest and coldest day. No account and no payment.
Is the Alanson forecast on this page free, and does it track me?
It is free, carries no advertising, and needs no account. Nothing about a visitor leaves the device except the coordinates needed to fetch a forecast, and those are not stored against anyone.