As of Oct 9, 2026, the latest day this station has reported

How much rain has Jefferson County, Montana, had in 2026?

24.00 inches of rain have fallen so far in 2026 at the weather station in Tizer Basin, Jefferson County, through Oct 9. That is 2.96 inches more than a usual year to date (114% of usual).

Rain so far
24.00 in
Usual by Oct 9
21.04 in
Percent of usual
114%
2025 by Oct 9
20.20 in
Running total of rain in Jefferson County, 2026, against a usual year0510152025JFMAMJJASOND2026Usual
Inches of rain added up day by day from Jan 1, solid line, against the usual year at this station (dashed), counted on the same days. Days with no report add nothing to either line.

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Prints of 2026 ship in January, once the full year is in.

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Month by month

Rain by month in Jefferson County, Montana, 2026
MonthRain, inUsual, inVs usual
Jan1.401.33+0.07
Feb1.201.43−0.23
Mar2.901.95+0.95
Apr3.003.13−0.13
May3.103.46−0.36
Jun4.404.01+0.39
Jul1.601.96−0.36
Aug1.701.55+0.15
Sep 2 days not reported2.001.60+0.40
Oct to the 9th2.700.62+2.08
So far24.0021.04+2.96

2026 so far in Jefferson County

The station, and what usual means

The numbers come from NOAA’s daily record for the station in Tizer Basin (station ID USS0011C04S), 18 miles from the middle of Jefferson County. It reported 280 of the 282 days from Jan 1 to Oct 9; the 2 days with no report count as unknown, not as dry. Rain here means everything the gauge caught: rain, and snow melted down to water. A trace counts as zero.

Usual means NOAA’s 1991 to 2020 daily normals for this station, added up over the same 280 days the station reported, so a missing day counts on neither side.

Why this station: 3 stations inside Jefferson County reported at least 90% of the days in 2026. Mountain snow sites, and stations far above the rest in the county, come last, since their rain is not what the farms below get. Then the pick goes to one with NOAA normals, then the most days reported, then the one nearest the middle of the county. Your own rain gauge can read differently a few miles away.

Questions

How much rain has Jefferson County, Montana, had in 2026?

24.00 inches of rain have fallen so far in 2026 at the weather station in Tizer Basin, Jefferson County, through Oct 9. That is 2.96 inches more than a usual year to date (114% of usual).

Is Jefferson County wetter or drier than usual in 2026?

Wetter so far. The weather station in Tizer Basin had 24.00 inches from Jan 1 to Oct 9, 114% of the usual 21.04 inches for the same days.

What was the wettest month in Jefferson County in 2026?

June, with 4.40 inches at the weather station in Tizer Basin, counting Jan 1 through Oct 9.

What was the biggest rain in Jefferson County in 2026?

1.60 inches on Jun 29, 2026, the most the gauge caught in one day this year through Oct 9.

How does 2026 compare with 2025 in Jefferson County?

From Jan 1 to Oct 9, the weather station in Tizer Basin had 20.20 inches in 2025 and 24.00 inches in 2026 (2026 missed 2 days). On the 280 days both years reported, 2026 had 3.80 inches more than 2025.

Next door

Rain in Montana, county by county · PRF insurance in Jefferson County · Farmland Atlas: Jefferson County