Helena, Montana

Location new record old record year set
Simpson 55 53 1956

... Record warm minimum temperatures for Nov 30 in north central
   and southwest Montana...

Location new record old record year set
Choteau 39 38 1953

12/01/2009 0730 am

1 miles N of Helena, Lewis And Clark County.

Snow m2.5 inch, reported by trained spotter.


            2.5 inches of snowfall overnight at location 1 mile
            north of Capitol. Snow has stopped at location.





11/30/2009 0804 PM

8 miles SW of Wolf Creek, Lewis And Clark County.

Non-thunderstorm wind gust m53.00 mph, reported by dept of highways.


            53 mph peak wind gust at the DOT sensor near Sieben
            flats.





11/30/2009 0804 PM

8 miles SW of Wolf Creek, Lewis And Clark County.

Non-thunderstorm wind gust m53.00 mph, reported by dept of highways.


            53 mph peak wind gust at the DOT sensor near Sieben
            flats.

... November 2009 and autumn seasonal weather summary for north central
and southwest Montana...

Average temperature...
              Nov norm Sep-Nov norm
Bozeman... ... .30.2..28.7... 36th coldest 44.5... .42.2... 18th warmest
Cut Bank... ... 37.6..29.5... .9th warmest 44.7... .41.8... 21st warmest
Dillon... ... ..32.4..30.7... 28th warmest 43.3... .43.2... 28th warmest
Great Falls... 39.6..32.3... 24th warmest 47.4... .44.4... 49th warmest
Havre... ... ... 37.8..29.1... 16th warmest 46.9... .43.3... 21st warmest
Helena... ... ..36.6..30.9... 28th warmest 46.9... .43.9... 22nd warmest
Lewistown... ..36.8..31.1... 20th warmest 44.8... .43.3... 48th warmest

Precipitation...
              Nov norm Sep-Nov norm
Bozeman... ... .1.12..0.81... 14th wettest 2.51... .3.35... 13th wettest
Cut Bank... ... ... T..0.42... .2nd driest 0.49... .2.07... .6th driest
Dillon... ... ..0.45..0.36... 25th wettest 2.79... .1.97... 14th wettest
Great Falls... 0.02..0.59... .4th driest 2.42... .2.75... 48th driest
Havre... ... ... ... T..0.45... .3rd driest 1.63... .2.10... 44th driest
Helena... ... ..0.13..0.48... 10th driest 1.99... .2.19... 47th driest
Lewistown... ..0.29..0.74... 27th driest 3.63... .3.18... 33rd wettest

Average wind speed...
              Nov norm Sep-Nov norm
Bozeman... ... .4.3... .5.4... .8th calmest 5.2... ..5.7... .9th calmest
Cut Bank... ..17.3... 13.6... .8th windiest 13.5... .12.5... 19th windiest
Dillon... ... ..8.6... .9.3... 16th calmest 8.6... ..8.7... 21st calmest
Great Falls..16.2... 14.7... 14th windiest 12.6... .13.1... 35th calmest
Havre... ... ..11.0... .9.2... 20th windiest 10.0... ..8.9... 19th windiest
Helena... ... ..6.0... .6.7... 25th calmest 6.4... ..6.8... 23rd calmest
Lewistown... .10.4... .9.9... 33rd windiest 9.4... ..9.2... 30th windiest

Overall... temperatures averaged above normal over central and
southwest Montana in November... up to 8 degrees above normal. Bozeman
and Dillon had a smaller positive departure... somewhat due to mid-month
snowfall that remained on the ground for the remainder of the month.

Precipitation was mostly below normal. A swath from the southwest
to the snowys had a positive departure. For the autumn... Cut Bank
has come up driest... ranking 6th driest of record. At Great Falls...
it was the driest November since 1954... while at Havre it was the
driest since 1969.

Winds continued to be lighter than the long-term average in many
areas. Bozeman had their 8th calmest November of record... while at
Cut Bank and Great Falls it was the windiest November since 1989.
Also... at Cut Bank... it was the 8th windiest November of record.

These data are preliminary and have not undergone final qc by ncdc.
Therefore these data are subject to revision. Final and certified
climate data can be accessed at the National climatic data center.