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Rainfall totals Caribou, ME

Through Oct 7, 2026, Caribou has received 30.18 inches of rain for the year, according to the official daily climate report. The normal year-to-date total is 30.61 inches. The normal figure is what the city would typically have seen by this point in the calendar. This reading comes from the station gauge at CARIBOU MUNICIPAL in the National Weather Service's daily climate report.

as of

Data from Caribou Weather Forecast Office, with records back to 1948. Across the record from 1948, 100 percent of days have a reading, with 100 percent in 2025.

Most recent rainfall

0.05 inches of rain fell on Oct 2, 2026, the latest measurable rainfall this year.

According to the National Weather Service daily climate report, 0.08 inches of rain fell at CARIBOU MUNICIPAL on Oct 7, 2026.

Official rainfall report for Oct 7, 2026

National Weather Service daily climate report for Caribou, Oct 7, 2026
MeasuredNormalvs normal
Rain on Oct 7, 20260.08 inches0.12 inches-0.04 inches
Last 48 hours0.08 inches
Last 72 hours0.52 inches
Last 7 days0.58 inches
Month to date0.58 inches0.85 inches-0.27 inches (-32%)
Year to date30.18 inches30.61 inches-0.43 inches (-1%)
Record for Oct 71.39 inches2005

Source: National Weather Service daily climate report for CARIBOU MUNICIPAL, issued the morning after Oct 7, 2026. The local National Weather Service office issues the daily climate report for the airport station the next morning, and that report is the official figure.

How much rain did Caribou get?

Days with measurable rain, 2026

Days with measurable rain in Caribou during 2026, newest first
DateRainfall
Oct 2, 20260.05 inches
Oct 1, 20260.01 inches
Sep 29, 20260.01 inches
Sep 28, 20260.08 inches
Sep 20, 20260.08 inches
Sep 14, 20260.05 inches
Sep 10, 20260.31 inches
Sep 9, 20260.03 inches
Sep 6, 20260.01 inches
Sep 5, 20260.01 inches
Sep 4, 20260.06 inches
Sep 3, 20260.66 inches
Aug 30, 20260.04 inches
Aug 28, 20260.06 inches
Aug 25, 20260.01 inches
Aug 24, 20260.03 inches
Aug 23, 20260.19 inches
Aug 17, 20261.06 inches
Aug 13, 20260.13 inches
Aug 11, 20260.90 inches
Aug 9, 20260.70 inches
Aug 8, 20260.05 inches
Aug 7, 20260.08 inches
Aug 3, 20260.49 inches
Jul 30, 20260.71 inches
Jul 22, 20261.10 inches
Jul 21, 20260.04 inches
Jul 19, 20260.25 inches
Jul 18, 20260.52 inches
Jul 16, 20260.10 inches

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With 1.63 inches on Mar 11, 2026, this is the 100th wettest of the 12,562 measurable rain days in the Caribou Weather Forecast Office record, which begins in 1948. That is the most rain recorded at this station on March 11 since 1948.

Measured total1991-2020 normal
Running rain total for 2026, January to December. Dark line is measured, light line is the 1991-2020 normal, violet dot marks the latest day.

Through Oct 3, 2026, the GHCN-Daily station record shows 29.66 inches of measurable rain so far this year, falling over a 117-day span. Station observations are from GHCN-Daily, with a 1-3 day lag and quality checks by NOAA.

Caribou rainfall by month, 2026

Monthly rainfall totals for Caribou in 2026, compared with 1991-2020 normals.
MonthRainfallNormalvs normal
January2.35 inches2.95 inches-0.60 inches (-20%)
February0.65 inches2.42 inches-1.77 inches (-73%)
March3.73 inches2.77 inches+0.96 inches (+35%)
April4.23 inches2.99 inches+1.24 inches (+41%)
May5.04 inches3.46 inches+1.58 inches (+46%)
June4.73 inches3.89 inches+0.84 inches (+22%)
July3.83 inches4.23 inches-0.40 inches (-9%)
August3.74 inches3.61 inches+0.13 inches (+4%)
September1.30 inches3.44 inches-2.14 inches (-62%)
October0.06 inches3.99 inches

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Measured total1991-2020 normal
Monthly rain totals for 2026. Dark bars show measured amounts, light bars show the 1991-2020 normal for comparison.

October is still in progress; figures run through Oct 3, 2026. Averages are 1991-2020 normals from NCEI.

Rainfall days at each threshold in Caribou

Rainfall days at each threshold in Caribou
Year0.5+ in.1+ in.2+ in.3+ in.
202524600
202420600
202331700
202235600
202123500
202024410
201928900
201830610
201726510
201634400
Average24.15.50.60.1

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A day counts when its rainfall total meets or passes the column amount, from Caribou Weather Forecast Office records in GHCN-Daily. Every complete year starting with 1948 counts toward the average, 78 years in total.

Past rainfall years in Caribou

All-time rainfall records

All-time rainfall records for Caribou since 1948
Wettest day6.67 inchesAug 17, 1981
Wettest year55.36 inches2011
Driest year27.92 inches1966
Average year38.43 inches78 complete years on record
Rain days a year160average, 0.01 inch or more
Record begins194828,745 daily readings

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Monthly rainfall normals

Average monthly rainfall for Caribou, 1991 to 2020
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Inches2.952.422.772.993.463.894.233.613.443.993.353.6040.70

Averages are 1991-2020 normals from NCEI.

Caribou appears in the site's top 12 of the foggiest cities in the US, averaging 37 heavy fog days yearly at its airport station (NCEI daily records).

The daily climate report is issued by the local National Weather Service forecast office and delivered to this page by the Iowa Environmental Mesonet of Iowa State University. Under 17 U.S.C. 105, no copyright attaches to the government-produced figures on this page, including reports, alerts, station observations, and normals, which were created by the National Weather Service and other NOAA offices. The notice that 17 U.S.C. 403 requires appears in this sentence. It does not imply endorsement by or affiliation with those agencies. See: Data sources and attribution.

All Maine rainfall totals