2009 Statistics for NC Montana

Some interesting information for North Central Montana from the National Weather Service

 PUBLIC INFORMATION STATEMENT
 NATIONAL WEATHER SERVICE GREAT FALLS MT
 1100 AM MST SUN JAN 3 2010

 ...2009 WEATHER SUMMARY FOR NORTH CENTRAL AND SOUTHWEST MONTANA...

 AVERAGE TEMPERATURE / DEPARTURE FROM NORMAL
  GREAT FALLS....44.1 / +0.3...22ND COOLEST YEAR OF RECORD.
  HAVRE..........41.3 / -0.9...33RD COOLEST YEAR OF RECORD.
  HELENA.........45.2 / +1.1...43RD WARMEST YEAR OF RECORD.
  BOZEMAN........44.3 / +2.1...8TH WARMEST YEAR OF RECORD.
  CUT BANK.......41.2 /  0.0...47TH COOLEST YEAR OF RECORD.
  DILLON.........42.6 / -1.6...23RD COOLEST YEAR OF RECORD.
  LEWISTOWN......42.1 / -0.7...31ST COOLEST YEAR OF RECORD.

 HIGHEST / LOWEST TEMPERATURES
 GREAT FALLS.... 95 ON 07/23          /  -26 ON 12/08
 HAVRE.......... 99 ON 07/25 9/3 & 17 /  -35 ON 12/08
 HELENA......... 99 ON 07/23          /  -23 ON 12/08
 BOZEMAN........101 ON 07/23          /  -26 ON 12/08
 CUT BANK....... 93 ON 09/03          /  -34 ON 12/08
 DILLON......... 95 ON 08/21          /  -21 ON 12/08
 LEWISTOWN...... 92 ON 09/03          /  -30 ON 12/08

 PRECIPITATION / DEPARTURE FROM NORMAL / MOST IN 24 HOURS
  GREAT FALLS....14.45 / -0.44 / 0.95 ON 07/24    43RD DRIEST YEAR
  HAVRE.......... 8.75 / -2.71 / 0.75 ON 07/06    24TH DRIEST YEAR
  HELENA.........10.25 / -1.07 / 1.12 ON 07/27    42ND DRIEST YEAR
  BOZEMAN........13.32 / -1.39 / 0.91 ON 08/06-07 29TH DRIEST YEAR
  CUT BANK....... 4.96 / -7.55 / 1.58 ON 06/21-22  2ND DRIEST YEAR
  DILLON.........11.37 / +1.43 / 1.05 ON 09/29-30 19TH WETTEST YEAR
  LEWISTOWN......14.23 / -3.62 / 0.96 ON 10/19    27TH DRIEST YEAR

 SNOWFALL / DEPARTURE FROM NORMAL / MOST IN 24 HOURS / MAX SNOW ON GRD
  GREAT FALLS...83.9 /+23.0 / 16.3 ON 04/29-30 / 17 INCHES ON 04/30
  HAVRE.........39.6 / -5.8 /  4.7 ON 01/08    / 19 INCHES IN 01/09-10
  HELENA........44.8 / +1.5 /  4.0 ON 02/26    /  5 INCHES ON 12/14-16
  CUT BANK......                               / 12 INCHES ON 04/30
  DILLON........                               /  4 INCHES ON 03/23
  LEWISTOWN.....                               /  8 INCHES ON 04/30

 AVERAGE WIND / DEPARTURE FROM NORMAL / PEAK WIND /MPH/
  GREAT FALLS....10.9 MPH / -2.0 / 58 MPH ON 07/12
  HAVRE.......... 9.6 MPH / +0.5 / 59 MPH ON 07/06
  HELENA......... 6.2 MPH / -1.2 / 54 MPH ON 07/12
  BOZEMAN........ 5.1 MPH / -0.6 / 58 MPH ON 06/25
  CUT BANK.......12.4 MPH / -0.3 / 72 MPH ON 10/31
  DILLON......... 8.7 MPH / -0.5 / 70 MPH ON 07/24
  LEWISTOWN...... 8.7 MPH / -0.6 / 63 MPH ON 05/05

 LAST SPRING FROST / FIRST FALL FROST
                        AVERAGE            AVERAGE
  GREAT FALLS....06/08   05/13   /  09/21   09/25
  HAVRE..........06/10   05/13   /  09/27   09/20
  HELENA.........05/21   05/15   /  10/02   09/22
  BOZEMAN........06/11   06/02   /  09/09   09/11
  CUT BANK.......06/09   05/26   /  09/21   09/12
  DILLON.........05/21   06/03   /  09/21   09/12
  LEWISTOWN......06/08   05/29   /  09/27   09/11

 DAYS OF MAXIMUM TEMPERATURE 90F OR HIGHER / 32F OR LOWER
                     AVERAGE        AVERAGE
  GREAT FALLS.... 18    18    /  45   45
  HAVRE.......... 28    25    /  72   58
  HELENA......... 24    19    /  43   47
  BOZEMAN........ 42    19    /  42   52
  CUT BANK.......  8     7    /  54   55
  DILLON.........  5    10    /  43   42
  LEWISTOWN......  9    10    /  49   49

 DAYS WITH MINIMUM TEMPERATURE 32F OR LOWER / 0F OR LOWER
                      AVERAGE       AVERAGE
  GREAT FALLS.... 162   162   /  24   24
  HAVRE.......... 176   178   /  41   35
  HELENA......... 160   181   /  24   22
  BOZEMAN........ 170   198   /  31   30
  CUT BANK....... 172   186   /  33   31
  DILLON......... 184   196   /  18   19
  LEWISTOWN...... 179   182   /  25   26

 DEGREE DAYS...
                HEATING AVG    COOLING AVG
  GREAT FALLS....7156  7828   / 284  288
  HAVRE..........8110  8250   / 311  377
  HELENA.........6957  7975   / 434  277
  BOZEMAN........7155  8578   / 336  259
  CUT BANK.......7742  8880   / 126  195
  DILLON.........7530  7787   / 149  183
  LEWISTOWN......7729  8413   / 171  255

GREAT FALLS...

 FEBRUARY...4TH CALMEST...CALMEST SINCE 2001.
 JUNE...4TH CALMEST...LIGHTEST JUNE WINDS SINCE 1967.
 JULY...5TH WETTEST.
        HIGHEST JULY PEAK WIND GUST /58 MPH/ SINCE 2002.
 OCTOBER...5TH COLDEST OCTOBER OF RECORD...COLDEST SINCE 2002.
 NOVEMBER...WINDIEST NOVEMBER SINCE 1990...WINDIEST MONTH SINCE
            JANUARY 2007...AVERAGE SPEED OF 16.2 MPH. TIED FOR
            3RD DRIEST NOVEMBER OF RECORD...ONLY 0.02 INCHES.
            DRIEST SINCE 1954.
 10TH SNOWIEST YEAR OF RECORD.
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