Overview Realtime Historical Map View
Flood Watch
2026-07-15T00:00:00-06:00

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of central, north central, and southwest Montana. * WHEN...From Tuesday afternoon through Tuesday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas and along burn scars. * ADDITIONAL DETAILS... - Heavy rainfall produced by thunderstorms may lead to flash flooding. Rainfall rates in excessive of 1 inch per hour are possible under heavier thunderstorms. - Some locations that may experience flooding include... Great Falls, Bozeman, Helena, Lewistown, Townsend, Fort Benton, West Yellowstone, White Sulphur Springs, Cascade, Big Sandy, Stanford, Lincoln, Belgrade, East Helena, Three Forks, Manhattan, Belt, Geraldine, Denton, Hobson and the Horse Gulch burn scar. - http://www.weather.gov/safety/flood

Rocker Peak Historical Data

Historical Data


Date Snowpack SWE Snowfall Air Temperature
2025-01-26 29.0"
2025-01-27 28.0"
2025-01-28 28.0"
2025-01-29 27.0"
2025-01-30 27.0"
2025-01-31 27.0"
2025-02-01 29.0"
2025-02-02 30.0"
2025-02-03 31.0"
2025-02-04 32.0"
2025-02-05 32.0"
2025-02-06 31.0"
2025-02-07 35.0"
2025-02-08 34.0"
2025-02-09 34.0"
2025-02-10 34.0"
2025-02-11 34.0"
2025-02-12 33.0"
2025-02-13 33.0"
2025-02-14 34.0"
2025-02-15 37.0"
2025-02-16 39.0"
2025-02-17 42.0"
2025-02-18 48.0"
2025-02-19 46.0"
2025-02-20 45.0"
2025-02-21 43.0"
2025-02-22 42.0"
2025-02-23 41.0"
2025-02-24 41.0"
2025-02-25 43.0"
2025-02-26 43.0"
2025-02-27 42.0"
2025-02-28 41.0"
2025-03-01 40.0"
2025-03-02 40.0"
2025-03-03 39.0"
2025-03-04 40.0"
2025-03-05 40.0"
2025-03-06 39.0"
2025-03-07 40.0"
2025-03-08 40.0"
2025-03-09 39.0"
2025-03-10 38.0"
2025-03-11 38.0"
2025-03-12 38.0"
2025-03-13 38.0"
2025-03-14 38.0"
2025-03-15 38.0"
2025-03-16 41.0"
2025-03-17 44.0"
2025-03-18 45.0"
2025-03-19 46.0"
2025-03-20 46.0"
2025-03-21 45.0"
2025-03-22 46.0"
2025-03-23 45.0"
2025-03-24 44.0"
2025-03-25 42.0"
2025-03-26 40.0"
2025-03-27 40.0"
2025-03-28 39.0"
2025-03-29 42.0"
2025-03-30 45.0"
2025-03-31 45.0"
2025-04-01 48.0"
2025-04-02 55.0"
2025-04-03 54.0"
2025-04-04 52.0"
2025-04-05 51.0"
2025-04-06 49.0"
2025-04-07 48.0"
2025-04-08 47.0"
2025-04-09 48.0"
2025-04-10 47.0"
2025-04-11 45.0"
2025-04-12 46.0"
2025-04-13 47.0"
2025-04-14 45.0"
2025-04-15 45.0"
2025-04-16 44.0"
2025-04-17 46.0"
2025-04-18 47.0"
2025-04-19 45.0"
2025-04-20 45.0"
2025-04-21 46.0"
2025-04-22 46.0"
2025-04-23 46.0"
2025-04-24 45.0"
2025-04-25 44.0"
2025-04-26 44.0"
2025-04-27 43.0"
2025-04-28 42.0"
2025-04-29 42.0"
2025-04-30 42.0"
2025-05-01 40.0"
2025-05-02 39.0"
2025-05-03 37.0"
2025-05-04 36.0"
2025-05-05 46.0"
2025-05-06 44.0"
2025-05-07 41.0"
2025-05-08 37.0"
2025-05-09 36.0"
2025-05-10 33.0"
2025-05-11 32.0"
2025-05-12 30.0"
2025-05-13 37.0"
2025-05-14 37.0"
2025-05-15 47.0"
2025-05-16 44.0"
2025-05-17 42.0"
2025-05-18 45.0"
2025-05-19 41.0"
2025-05-20 40.0"
2025-05-21 39.0"
2025-05-22 38.0"
2025-05-23 38.0"
2025-05-24 36.0"
2025-05-25 34.0"
2025-05-26 33.0"
2025-05-27 30.0"
2025-05-28 27.0"
2025-05-29 25.0"
2025-05-30 21.0"
2025-05-31 18.0"
2025-06-01 14.0"
2025-06-02 13.0"
2025-06-03 12.0"
2025-06-04 11.0"
2025-06-05 10.0"
2025-06-06 7.0"
2025-06-07 3.0"
2025-06-08 1.0"
2025-06-09 0.0"
2025-06-10 0.0"
2025-06-11 0.0"
2025-06-12 0.0"
2025-06-13 0.0"
2025-06-14 0.0"
2025-06-15 0.0"
2025-06-16 0.0"
2025-06-17 0.0"
2025-06-18 0.0"
2025-06-19 0.0"
2025-06-20 0.0"
2025-06-21 0.0"
2025-06-22 0.0"
2025-06-23 0.0"
2025-06-24 0.0"
2025-06-26 0.0"
2025-06-27 0.0"
2025-07-02 0.0"
2025-07-14 0.0"
2025-07-15 0.0"
2025-07-22 0.0"
2025-07-24 0.0"
2025-07-25 0.0"
2025-08-08 0.0"
2025-08-11 0.0"
2025-08-12 0.0"
2025-08-14 0.0"
2025-08-22 0.0"
2025-09-02 0.0"
2025-09-19 0.0"
2025-09-29 0.0"
2025-10-03 0.0"
2025-10-04 0.0"
2025-10-05 0.0"
2025-10-06 0.0"
2025-10-07 1.0"
2025-10-08 0.0"
2025-10-09 0.0"
2025-10-10 0.0"
2025-10-11 0.0"
2025-10-12 2.0"
2025-10-13 6.0"
2025-10-14 5.0"
2025-10-15 4.0"
2025-10-16 4.0"
2025-10-17 3.0"
2025-10-18 6.0"
2025-10-19 7.0"
2025-10-20 7.0"
2025-10-21 6.0"
2025-10-22 5.0"
2025-10-23 5.0"
2025-10-24 5.0"
2025-10-25 4.0"
2025-10-26 4.0"
2025-10-27 4.0"
2025-10-28 4.0"
2025-10-29 5.0"
2025-10-30 5.0"
2025-10-31 5.0"
2025-11-01 4.0"
2025-11-02 3.0"
2025-11-03 4.0"
2025-11-04 4.0"
2025-11-05 3.0"
2025-11-06 4.0"
2025-11-07 4.0"
2025-11-08 4.0"
2025-11-09 4.0"
2025-11-10 4.0"
2025-11-11 4.0"
2025-11-12 4.0"
2025-11-13 4.0"
2025-11-14 3.0"
2025-11-15 3.0"
2025-11-16 3.0"
2025-11-17 3.0"
2025-11-18 3.0"
2025-11-19 4.0"
2025-11-20 4.0"
2025-11-21 3.0"
2025-11-22 4.0"
2025-11-23 4.0"
2025-11-24 7.0"
2025-11-25 6.0"
2025-11-26 6.0"
2025-11-27 6.0"
2025-11-28 10.0"
2025-11-29 10.0"
2025-11-30 9.0"
2025-12-01 8.0"
2025-12-02 10.0"
2025-12-03 10.0"
2025-12-04 10.0"
2025-12-05 11.0"
2025-12-06 21.0"
2025-12-07 21.0"
2025-12-08 21.0"
2025-12-09 22.0"
2025-12-10 22.0"
2025-12-11 21.0"
2025-12-12 23.0"
2025-12-13 22.0"
2025-12-14 21.0"
2025-12-15 21.0"
2025-12-16 22.0"
2025-12-17 26.0"
2025-12-18 26.0"
2025-12-19 34.0"
2025-12-20 32.0"
2025-12-21 31.0"
2025-12-22 31.0"
2025-12-23 31.0"
2025-12-24 30.0"
2025-12-25 29.0"
2025-12-26 28.0"
2025-12-27 31.0"
2025-12-28 30.0"
2025-12-29 30.0"
2025-12-30 29.0"
2025-12-31 28.0"
2026-01-01 28.0"
2026-01-02 28.0"
2026-01-03 28.0"
2026-01-04 29.0"
2026-01-05 29.0"
2026-01-06 32.0"
2026-01-07 36.0"
2026-01-08 34.0"
2026-01-09 34.0"
2026-01-10 33.0"
2026-01-11 32.0"
2026-01-12 32.0"
2026-01-13 31.0"
2026-01-14 31.0"
2026-01-15 30.0"
2026-01-16 30.0"
2026-01-17 30.0"
2026-01-18 30.0"
2026-01-19 30.0"
2026-01-20 31.0"
2026-01-21 31.0"
2026-01-22 31.0"
2026-01-23 30.0"
2026-01-24 31.0"
2026-01-25 32.0"
2026-01-26 32.0"
2026-01-27 32.0"
2026-01-28 31.0"
2026-01-29 31.0"
2026-01-30 31.0"
2026-01-31 31.0"
2026-02-01 31.0"
2026-02-02 30.0"
2026-02-03 31.0"
2026-02-04 30.0"
2026-02-05 30.0"
2026-02-06 30.0"
2026-02-07 30.0"
2026-02-08 30.0"
2026-02-09 38.0"
2026-02-10 37.0"
2026-02-11 36.0"
2026-02-12 36.0"
2026-02-13 35.0"
2026-02-14 35.0"
2026-02-15 36.0"
2026-02-16 36.0"
2026-02-17 39.0"
2026-02-18 40.0"
2026-02-19 40.0"
2026-02-20 40.0"
2026-02-21 40.0"
2026-02-22 39.0"
2026-02-23 39.0"
2026-02-24 39.0"
2026-02-25 40.0"
2026-02-26 39.0"
2026-02-27 39.0"
2026-02-28 39.0"
2026-03-01 38.0"
2026-03-02 38.0"
2026-03-03 38.0"
2026-03-04 38.0"
2026-03-05 44.0"
2026-03-06 44.0"
2026-03-07 43.0"
2026-03-08 42.0"
2026-03-09 43.0"
2026-03-10 43.0"
2026-03-11 43.0"
2026-03-12 44.0"
2026-03-13 53.0"
2026-03-14 59.0"
2026-03-15 60.0"
2026-03-16 58.0"
2026-03-17 55.0"
2026-03-18 53.0"
2026-03-19 51.0"
2026-03-20 49.0"
2026-03-21 47.0"
2026-03-22 46.0"
2026-03-23 46.0"
2026-03-24 46.0"
2026-03-25 44.0"
2026-03-26 44.0"
2026-03-27 44.0"
2026-03-28 44.0"
2026-03-29 43.0"
2026-03-30 45.0"
2026-03-31 45.0"
2026-04-01 44.0"
2026-04-02 47.0"
2026-04-03 52.0"
2026-04-04 50.0"
2026-04-05 48.0"
2026-04-06 47.0"
2026-04-07 46.0"
2026-04-08 46.0"
2026-04-09 45.0"
2026-04-10 44.0"
2026-04-11 44.0"
2026-04-12 44.0"
2026-04-13 45.0"
2026-04-14 44.0"
2026-04-15 44.0"
2026-04-16 46.0"
2026-04-17 46.0"
2026-04-18 45.0"
2026-04-19 44.0"
2026-04-20 43.0"
2026-04-21 42.0"
2026-04-22 41.0"
2026-04-23 47.0"
2026-04-24 48.0"
2026-04-25 46.0"
2026-04-26 46.0"
2026-04-27 45.0"
2026-04-28 45.0"
2026-04-29 45.0"
2026-04-30 44.0"
2026-05-01 42.0"
2026-05-02 41.0"
2026-05-03 40.0"
2026-05-04 40.0"
2026-05-05 39.0"
2026-05-06 38.0"
2026-05-07 36.0"
2026-05-08 34.0"
2026-05-09 32.0"
2026-05-10 31.0"
2026-05-11 28.0"
2026-05-12 27.0"
2026-05-13 25.0"
2026-05-14 23.0"
2026-05-15 22.0"
2026-05-16 23.0"
2026-05-17 24.0"
2026-05-18 23.0"
2026-05-19 22.0"
2026-05-20 21.0"
2026-05-21 23.0"
2026-05-22 22.0"
2026-05-23 20.0"
2026-05-24 17.0"
2026-05-25 14.0"
2026-05-26 12.0"
2026-05-27 7.0"
2026-05-28 2.0"
2026-05-29 None"
2026-05-30 None"
2026-05-31 0.0"
2026-06-01 None"
2026-06-02 0.0"
2026-06-03 None"
2026-06-04 None"
2026-06-05 0.0"
2026-06-06 1.0"
2026-06-07 0.0"
2026-06-08 0.0"
2026-06-09 1.0"
2026-06-10 0.0"
2026-06-11 None"
2026-06-12 0.0"
2026-06-13 None"
2026-06-14 None"
2026-06-15 0.0"
2026-06-16 0.0"
2026-06-17 0.0"
2026-06-18 0.0"
2026-06-19 0.0"
2026-06-20 0.0"
2026-06-21 0.0"
2026-06-22 0.0"
2026-06-23 0.0"
2026-06-24 0.0"
2026-06-25 0.0"
2026-06-26 0.0"
2026-06-27 1.0"
2026-06-28 1.0"
2026-06-29 5.0"
2026-06-30 None"
2026-07-01 0.0"
2026-07-02 0.0"
2026-07-03 0.0"
2026-07-04 0.0"
2026-07-05 0.0"
2026-07-06 0.0"
2026-07-07 0.0"
2026-07-08 0.0"
2026-07-09 0.0"
2026-07-10 0.0"
2026-07-11 0.0"
2026-07-12 0.0"
2026-07-13 0.0"

Snowfall Calendar


Date Average 2026 2025
01-01 0
01-02 0
01-03 0
01-04 0
01-05 0
01-06 0
01-07 0
01-08 2.0
01-09 2.0
01-10 2.0
01-11 2.0
01-12 1.0
01-13 2.0
01-14 1.0
01-15 1.0
01-16 1.0
01-17 0
01-18 0
01-19 0
01-20 0
01-21 1.0
01-22 0
01-23 0
01-24 0
01-25 0
01-26 1.0
01-27 1.0
01-28 1.0
01-29 0
01-30 1.0
01-31 1.0
02-01 1.0
02-02 0
02-03 0
02-04 0
02-05 1.0
02-06 0
02-07 0
02-08 0
02-09 0
02-10 2.0
02-11 2.0
02-12 1.0
02-13 0
02-14 0
02-15 0
02-16 0
02-17 0
02-18 0
02-19 1.0
02-20 2.0
02-21 3.0
02-22 0
02-23 0
02-24 0
02-25 0
02-26 2.0
02-27 1.0
02-28 1.0
03-01 0
03-02 0
03-03 0
03-04 0
03-05 0
03-06 3.0
03-07 0
03-08 0
03-09 0
03-10 0
03-11 0
03-12 0
03-13 0
03-14 0
03-15 7.0
03-16 7.0
03-17 7.0
03-18 6.0
03-19 5.0
03-20 4.0
03-21 2.0
03-22 2.0
03-23 1.0
03-24 2.0
03-25 1.0
03-26 1.0
03-27 1.0
03-28 0
03-29 0
03-30 0
03-31 0
04-01 0
04-02 0
04-03 2.0
04-04 4.0
04-05 3.0
04-06 2.0
04-07 2.0
04-08 2.0
04-09 1.0
04-10 0
04-11 0
04-12 0
04-13 0
04-14 0
04-15 0
04-16 1.0
04-17 1.0
04-18 3.0
04-19 3.0
04-20 2.0
04-21 0
04-22 0
04-23 0
04-24 1.0
04-25 2.0
04-26 0
04-27 2.0
04-28 1.0
04-29 4.0
04-30 2.0
05-01 4.0
05-02 3.0
05-03 2.0
05-04 3.0
05-05 3.0
05-06 6.0
05-07 4.0
05-08 6.0
05-09 0
05-10 0
05-11 0
05-12 0
05-13 0
05-14 0
05-15 0
05-16 0
05-17 0
05-18 0
05-19 0
05-20 0
05-21 0
05-22 0
05-23 0
05-24 0
05-25 0
05-26 0
05-27 0
05-28 0
05-29 0
05-30 0
05-31 0
06-01 0
06-02 0
06-03 0
06-04 0
06-06 0
06-07 0
06-08 0
06-09 0
06-10 0
06-11 0
06-12 0
06-13 0
06-14 0
06-25 0
06-26 0
06-27 0
06-28 0
06-29 0
06-30 0
07-01 0
07-02 0
09-02 0
09-19 0
09-29 0
10-03 0
10-04 0
10-05 0
10-06 0
10-07 0
10-08 0
10-09 0
10-10 0
10-11 0
10-12 0
10-13 0
10-14 1.0
10-15 0
10-16 0
10-17 0
10-18 0
10-19 0
10-20 2.0
10-21 1.0
10-22 2.0
10-23 2.0
10-24 1.0
10-25 0
10-26 0
10-27 0
10-28 0
10-29 0
10-30 1.0
10-31 2.0
11-01 2.0
11-02 0
11-03 0
11-04 1.0
11-05 0
11-06 0
11-07 0
11-08 0
11-09 0
11-10 0
11-11 1.0
11-12 0
11-13 1.0
11-14 1.0
11-15 1.0
11-16 1.0
11-17 0
11-18 0
11-19 1.0
11-20 0
11-21 0
11-22 0
11-23 0
11-24 0
11-25 1.0
11-26 0
11-27 0
11-28 0
11-29 1.0
11-30 0
12-01 0
12-02 0
12-03 0
12-04 0
12-05 0
12-06 0
12-07 0
12-08 1.0
12-09 0
12-10 0
12-11 0
12-12 1.0
12-13 1.0
12-14 0
12-15 0
12-16 0
12-17 0
12-18 0
12-19 0
12-20 2.0
12-21 2.0
12-22 1.0
12-23 2.0
12-24 2.0
12-25 0
12-26 0
12-27 0
12-28 2.0
12-29 2.0
12-30 2.0
12-31 1.0

Annual Peak Snowpack


Seasonal Comparison


Oceanic Nino Index