Dry weather prevailed across much of Northern Michigan during the month, with most locations reporting well below normal rainfall.  The one exception was in the traditional lake effect belts of Northwest Lower and Eastern Upper Michigan, as the first cold shots of the fall season brought occasional lake enhanced showers to those areas.

     Temperatures averaged a touch below normal (still, well within an average range for September).  Interestingly, this broke a multi-month streak of above normal temperatures for much of Northern Michigan. 

September Temperature Data:

Sault Ste Marie (1888 - 2012)

September Mean

Normal

Departure

Ranking

Warmest Temp/Date(s)

Coolest Temp/Date(s)

Record Warm/Year

Record Cold/Year

56.0

57.1

-1.1

N/A

82 / 3rd

35 / 25th

62.4 / 2002

49.7 / 1918

 

Houghton Lake (1919 - 2012)

September Mean

Normal

Departure

Ranking

Warmest Temp/Date(s)

Coolest Temp/Date(s)

Record Warm/Year

Record Cold/Year

57.3

57.2

+0.1

N/A

85 / 3rd, 12th

32 / 28th

64.0 / 1931

52.9 / 1993

 

Alpena (1916 - 2012)

September Mean

Normal

Departure

Ranking

Warmest Temp/Date(s)

Coolest Temp/Date(s)

Record Warm/Year

Record Cold/Year

56.8

57.7

-0.9

N/A

89 / 12th

33 / 27th,28th

63.1 / 2002*

51.8 / 1924*

 

Traverse City Airport (1897 - 2012)

September Mean

Normal

Departure

Ranking

Warmest Temp/Date(s)

Coolest Temp/Date(s)

Record Warm/Year

Record Cold/Year

59.6

59.8

-0.2

N/A

90 / 3rd

35 / 27th

66.8 / 1931

55.5 / 1956

 

Gaylord COOP (1951 - 2001); Gaylord Airport (2001-2012)

September Mean

Normal

Departure

Ranking

Warmest Temp/Date(s)

Coolest Temp/Date(s)

Record Warm/Year

Record Cold/Year

55.8

56.6

-0.8

10th Coolest

88 / 3rd

29 / 27th

62.6 / 1961

52.6/ 1993

September Precipitation Data (inches):

Sault Ste Marie (1888 - 2012)

Precipitation

Normal

Departure

Ranking

Greatest 24-hr rainfall/date(s)

Days with measurable precipitation

Record Wettest/Year

Record Driest/Year

1.83

3.82

-1.99

Tied 17th Driest

0.40 / 21st-22nd

13

9.35 / 1916

0.50 / 2009

 

Houghton Lake (1919 - 2012)

Precipitation

Normal

Departure

Ranking

Greatest 24-hr rainfall/date(s)

Days with measurable precipitation

Record Wettest/Year

Record Driest/Year

1.42

3.10

-1.68

12th Driest

0.49 / 3rd-4th

10

9.49 / 1986

0.01 / 1979

 

Alpena (1916 - 2012)

Precipitation

Normal

Departure

Ranking

Greatest 24-hr rainfall/date(s)

Days with measurable precipitation

Record Wettest/Year

Record Driest/Year

1.64

2.92

-1.28

16th Driest

0.44 / 21st-22nd

12

10.40 / 1937

0.28 / 1979

 

Traverse City Cooperative Observing Station (1930 - 1993, 2001 - 2012)

Precipitation

Normal

Departure

Ranking

Record Wettest/Year

Record Driest/Year

4.27

3.83

+0.44

N/A

9.17 / 1965

0.35 / 1979

 

Gaylord Cooperative Observing Station (1940 - 2012)

Precipitation

Normal

Departure

Ranking

Record Wettest/Year

Record Driest/Year

3.45

3.77

-0.32

N/A

10.18 / 1986

0.21 / 1979

Gaylord, MI (APX): September, 2012 Monthly Observed Precipitation Valid at 10/1/2012 1200 UTC - Created 10/1/12 15:42 UTC

Gaylord, MI (APX): September, 2012 Monthly Percent of Normal Precipitation Valid at 10/1/2012 1200 UTC - Created 10/1/12 15:46 UTC

- all averages are calculated using the new 1981 - 2010 period

( ) = Consistent years of record; Record temperature data for Gaylord is a combination of Gaylord Airport (2001-2011) and the Cooperative Observing Station records (1951-2001), Record precipitation data for Traverse City is a combination of Cherry Capital Airport (1930-1993) and the Cooperative Observing Station records (2001-2011)

- only rankings in the top 20 will be entered

* = Record occurred in multiple years; latest year shown

**THESE DATA ARE PRELIMINARY AND HAVE NOT UNDERGONE FINAL QUALITY CONTROL BY THE NATIONAL CLIMATIC DATA CENTER. THEREFORE, THESE DATA ARE SUBJECT TO REVISION. FINAL AND CERTIFIED CLIMATE DATA CAN BE ACCESSED AT WWW.NCDC.NOAA.GOV.*

For additional climate information and atmospheric and oceanic features that drive the patterns across our area, please visit the following links:

Latest Central Pacific Ocean Temperature Trends     Large Scale Atmospheric Blocking Features     Local Climate Home Page     Latest Drought Information

* Data for Traverse City is derived from a composite of observations taken at both Cherry Capital Airport and the cooperative observing station at Munson Medical Center. This data is for informational purposes only and does not meet climatological standards. This data set may include periods with missing data…particularly snowfall data from 1996-2001.

**Data for Gaylord is derived from a composite of observations taken at both Gaylord-Otsego County Airport and the cooperative observing station located near downtown Gaylord. This data is for informational purposes only and does not meet climatological standards. This data set may include periods with missing data and data that has been recorded from different observing points throughout history.


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