Central and Southern Lewis and Clark Severe Watches & Warnings NOAA Weather Radio

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Public Information Statement
Issued: 8:30 PM MDT Apr. 26, 2018 – National Weather Service

... Dates of first 70-degree days this Spring...

Many areas have reached 70+ degrees today, making it the first one
for the year for these routine reporting locations. This is
somewhat later than the average first 70-degree day, but not the
latest. How does today compare?

Check out the following table:

First 70-degree occurrences (on record):
                                             (previous
              earliest average 2018 70 deg day) latest
Cut Bank... ..Feb 27 1992... Apr 17... Apr 27 (oct 28 2017)... may 28 1995
Dillon... ... .Mar 11 2005... Apr 13... ** (oct 25 2017)... may 22 1983
Great Falls..Feb 27 1992... Apr 8... Apr 27 (oct 19 2017)... may 17 1995
Havre... ... ..Feb 24 1995... Mar 23... Apr 27 (oct 28 2017)... may 16 1967
Helena... ... .Mar 4 1987... Apr 3... Apr 27 (oct 25 2017)... may 28 1896

**dillon has not yet reached 70 degrees in 2018
***lewistown not listed - they have already hit 70 degrees this year

830 PM MDT Thu Apr 26 2018

... Dates of first 70-degree days this Spring...

Many areas have reached 70+ degrees today, making it the first one
for the year for these routine reporting locations. This is
somewhat later than the average first 70-degree day, but not the
latest. How does today compare?

Check out the following table:

First 70-degree occurrences (on record):
                                             (previous
              earliest average 2018 70 deg day) latest
Cut Bank... ..Feb 27 1992... Apr 17... Apr 27 (oct 28 2017)... may 28 1995
Dillon... ... .Mar 11 2005... Apr 13... ** (oct 25 2017)... may 22 1983
Great Falls..Feb 27 1992... Apr 8... Apr 27 (oct 19 2017)... may 17 1995
Havre... ... ..Feb 24 1995... Mar 23... Apr 27 (oct 28 2017)... may 16 1967
Helena... ... .Mar 4 1987... Apr 3... Apr 27 (oct 25 2017)... may 28 1896

**dillon has not yet reached 70 degrees in 2018
***lewistown not listed - they have already hit 70 degrees this year