A low pressure system will bring heavy to excessive rainfall and high winds across Montana this afternoon. Heavy rainfall totals may lead to scattered flash flooding concerns. A line of showers and strong to severe thunderstorms will move into the mid Missouri Valley region this afternoon producing severe winds and isolated large hail with stronger storms. Read More >
| Average Temperature - 66.35 F | 5th Warmest Year Ever; Average = 63.4 F |
| Precipitation - 17.69 Inches | 21st Wettest Year on Record ; Wettest 32.13" 1986 |
| Snowfall - Trace | Normal = 4.8 inches |
| # Days with Snowfall 0.1 " or more - 0 Days | Normal = 2 Days |
| Highest Sea Level Pressure : 30.77 In - Jan 16th | Highest: 31.04 inches (sea level) on Dec 24th, 1983 |
| Lowest Sea Level Pressure : 29.46 In - Apr 12th | Lowest: 29.09 inches (sea level) on Feb. 9, 1960 |
| Growing Season : 251 Days | Rank: 8th Highest Ever |
| # Days Thunderstorms Occurred - 31 Days | 48th Highest (Tied); Average = 34.9 Days |
| # Days Severe Thunderstorms Occurred - 1 Days | Highest: 5 Days 2017 And 1994 (Since 1991) |
| # Days Hail Occurred - 0 Days | |
| # Days with Fog - 81 Days | Fog - Prevailing Visibility reduced to 6 miles or less |
| # Days with Dense Fog - 10 Days | Dense Fog - Visibility 1/2 mile or less |
| # Days with Freezing Fog - 0 Days | Freezing Fog - Visibility 1/2 mile or less |
| # Days with Freezing Rain/Drizzle - 1 Day | |
| # Days with Dust Storm - 0 Days | Dust Storm - Visibility reduced to 1/2 miles or less |
| # Days 90 F - 127 Days | Rank: 13th Highest ; Highest = 151 Days 2011 |
| Longest Consecutive Days 90 F - 30, 20 Days | Record: 92 Days: May 19th - August 18th 1953 |
| # Days 100 F - 36 Days | Rank: 5th Highest ; Normal = 14.41 Days |
| Longest Consecutive Days 100 F - 9, 6, 4 Days | 9 Days: May 25th - June 2nd ; Rank: 10th Longest (Tied) |
| # Days 105 F - 11 Days | Record : 18 days in 2011 |
| Longest Consecutive Days 105 F - 3, 2, 2 Days | 3 Days: May 30th - June 1st Rank: 9th Highest (Tied) |
| # Days Max 32 F or less - 3 Days | Record : 11 Days in 1985 |
| Consecutive Max 32 F or less - 2 Days | January 1st - 2nd Record 5 Days: 1973, 2007 |
| # Days Min 32 F or less - 57 Days | Rank: 33rd Least |
| Consecutive Mins 32 F or less - 10, 8 Days | Record: 29 Days February 1936 |
| # Days Min 20 F or Less - 3 Days | Average = 8.7 Days |
| # Days Consecutive Min 20 F or less - 4 Days | Record: 10 Days January 1940 |
| # Days Max 20 F or less - 0 Days | Record: 2 Days 2011 and 1997 |
| First Freeze : November 12th - 27 F | Average First Freeze: November 10th |
| First Moderate Freeze: November 12th - 27 F | Average First Moderate Freeze - November 21st |
| First Severe Freeze: November 13th - 24 F | Average First Severe Freeze - December 2nd |
| Last Freeze : March 6th - 32 F | Average Last Freeze March 29th |
| Last Moderate Freeze: February 26th - 25 F | Average Last Moderate Freeze - March 14th |
| Last Severe Freeze: February 11th - 24 F | Average Last Severe Freeze - March 2nd |
| # Days Minimum 5 F or less - 0 Days | |
| Most Consecutive Dry Days - 35, 27, 24 | 81 Days: Ranked 1st |
| Most Consecutive Days Trace or Dry - 37, 34, 25 | 103 Days: Ranked 1st 1950-1951 ; Oct 20 1950 - Jan 30 1951 |
| Most Consecutive Days Trace or more Precip - 5, 4, 4 | Record: 14 days 1995, 1986 |
| Most Consecutive Days .01 or more Precip - 5, 3, 3 | 5 Days October 5th - October 9th Ranked 17th Highest |
| Most Consecutive Days Trace or more Snowfall - 3 Days | Record: 7 Days 1949 |
| Most Consecutive Days .1 or more Snowfall - 0 Days | Record: 4 Days 2011 & 1994 |
| 21 Record or Tie Warm Daily Maximum Temperature | |
| 5 Record or Tie Cold Daily Maximum Temperature | |
| 31 Record or Tie Warm Minimum Temperature | |
| 0 Record or Tie Cold Minimum Temperature | |
| 2 Daily Precipitation Records | |
| 3rd Warmest March 62.2 F | Record: 64.5 F 2017 |
| Warmest May Ever - 82.1 F | |
| 3rd Warmest June - 85.9 F | Record: 88.0 F 2011 |
| 6th Warmest July - 85.9 F | Record: 88.2 F 2016 |
| 6th Driest January - 0.01 in (Tied) | |
| 5th Driest April - Trace (Tied) | |
| 4th Wettest October - 5.44 in | Record: 7.45 in 1986 |
| 2nd Coldest New Years Eve - 24 F | Record: 21 F 1979 |
| Warmest Min Temp Memorial Day - 75 F | |
| 2nd Warmest Memorial Day - 101 F | Record: 102 F 2001 And 1994 |
| 2nd Warmest Min Temp July 4th - 79 F | Record: 81 F 2016 |
| 2nd Least Seasonal Snowfall - Trace (Tie) | Record: 0.0 in 2011-12 |
| Warmest Spring Ever - 69.87 F | Average: 64.5 F |
| 3rd Warmest Summer - 85.33 F | Record: 87.60 F 2011 |
| 8th Driest Spring - 0.79 in | Record: 0.03 in 2013 |
| 8th Wettest Fall - 8.17 in | Record: 15.58 in 1986 |
| 9th Driest Winter - 0.44 in | Record: 0.05 in 1966-67 |
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