Through September 20th, it was very dry across most of Upper Michigan. Only a trace of precipitation was recorded at the National Weather Service (NWS) office in Negaunee Township through the 20th. On the 21st of September, the streak of no measurable precipitation ended, with much needed rain falling across most of the U.P. Many areas across central Upper Michigan recorded between 0.25 and 1.0 inch of rain, with lesser amounts across western and eastern Upper Michigan. At the NWS office in Negaunee Township, 0.29 inches of precipitation was recorded on September 21st. September 2009 is still on pace to go down as the driest on record. More than 0.92 inches of precipitation is needed by the end of the month at the NWS office, or September 2009 will go down as the driest September on record. The current record for the least amount of liquid precipitation for September is 1.21 inches which occurred in 1989.
The streak of days without measurable precipitation ended at 22 at the NWS office in Negaunee Township. This tied the 2nd longest stretch of days on record without measurable precipitation. Measurable precipitation is precipitation that amounts to .01 inches or greater.
The top 4 longest periods without measurable precipitation at the NWS office in Negaunee Township are listed below:
Rank # Days End Date
1 24 5/12/1998
2 22 5/28/1972 & 9/19/2009
3 20 4/11/1984
4 19 8/27/1969 & 5/31/1986 & 9/4/1999
Temperatures are expected to continue to average above normal for the next week. As far as rainfall, the next best chance of precipitation at the NWS office and the rest of the U.P. is Saturday the 26th through Monday the 28th.
The top 5 driest months on record at the NWS office in Negaunee Township are listed below:
May 1986 0.06 inches
Mar 1974 0.32 inches
Dec 1994 0.37 inches
Aug 2008 0.44 inches
Feb 1994 0.48 inches
Weather records for the National Weather Service office in Negaunee Township date back to 1961.