last frost in zone 5b?
Ann Arbor is in planting zone 5b - a quick check of the net suggests that the last frost date expected is about May 15. Time to start examining the flowerbeds for where things go - we'll put impatiens out front where they won't get much sun which is what they like.


Average fall frost date - Oct 20. Pick your tomatoes soon....
Posted by: Edward Vielmetti | October 11, 2005 at 02:14 AM
I've seen snowdrops and aconites up - a sign of spring!
Posted by: Edward Vielmetti | March 06, 2006 at 10:16 PM
Average fall frost date in Ann Arbor - Oct 20. That implies about three weeks left in tomato season.
Posted by: Edward Vielmetti | September 26, 2006 at 01:53 PM
Some frost predicted tonight -
327 PM EDT THU SEP 28 2006
FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM EDT FRIDAY.
THE NATL WEATHER SVC IN DETROIT/PONTIAC HAS ISSUED A
FROST ADVISORY.WHICH IS IN EFFECT FROM 2 AM TO 8 AM EDT FRIDAY.
TEMPS WILL DROP INTO THE MID 30S TOWARD SUNRISE TOMORROW
WHICH SHOULD ALLOW FOR THE DEVELOPMENT OF FROST.
A FROST ADVISORY MEANS THAT FROST IS EXPECTED. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.
Posted by: Edward Vielmetti | September 28, 2006 at 04:22 PM
Warning KARB KYIP KDTX - cover your tomatoes!
FROST ADVISORY IN EFFECT FOR LATE TONIGHT.
STRONG HIGH PRESSURE WILL BUILD OVER S. LWR MI
OVERNIGHT WITH NEARLY CALM WINDS EXPECTED. THIS COMBINATION OF
LIGHT WINDS & MOSTLY CLEAR SKIES WILL ALLOW TEMPS TO FALL
RAPIDLY OVERNIGHT INTO THE LOW TO MID 30S OUTSIDE OF THE
METROPOLITAN DETROIT AREA. THESE CONDITIONS WILL BE FAVORABLE FOR
THE DEVELOPMENT OF FROST BY LATE TONIGHT & WILL PERSIST INTO
THE EARLY SUN MORNING. THE COVERAGE OF FROST WILL BE LIMITED
FOR AREAS IMMEDIATELY ADJACENT TO THE GREAT LAKES WHERE THE WARM
WATER WILL KEEP TEMPS SLIGHTLY WARMER.
MIZ047>049-053>055-060>063-068>070-075-082-083-161200-
/O.NEW.KDTX.FR.Y.0004.070916T0600Z-070916T1200Z/
MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-
LAPEER-ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-LENAWEE-
MONROE-
INCLUDING THE CITIES OF.MIDLAND.BAY CITY.BAD AXE.
SAGINAW.CARO.SANDUSKY.OWOSSO.FLINT.LAPEER.
PORT HURON.HOWELL.PONTIAC.WARREN.ANN ARBOR.ADRIAN.
MONROE
326 PM EDT SAT SEP 15 2007
FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM EDT SUNDAY.
THE NATL WEATHER SVC IN DETROIT/PONTIAC HAS ISSUED A
FROST ADVISORY.WHICH IS IN EFFECT FROM 2 AM TO 8 AM EDT SUNDAY.
THE COMBINATION OF LIGHT WINDS & CLEAR SKIES WILL ALLOW VERY
COLD TEMPS TO DEVELOP OVER SE MI TONIGHT.
NEAR RECORD LOWS ARE EXPECTED IN THE LOW TO MID 30S OUTSIDE OF THE
METROPOLITAN DETROIT AREA. THESE CONDITIONS WILL BE FAVORABLE FOR
AREAS OF FROST TO DEVELOP FROM LATE TONIGHT INTO EARLY SUNDAY
MORNING.
A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.
$$
KEC
Posted by: Edward Vielmetti | September 15, 2007 at 09:18 PM
Searches for this page are starting to hit - at the moment everything is covered with a layer of ice.
Posted by: Edward Vielmetti | February 18, 2008 at 10:27 PM
What might be the last frost of the season coming up - details
FREEZING TEMPS ARE EXPECTED TONIGHT.
HIGH PRESSURE WILL DRIFT ACROSS THE S. PART OF THE STATE
TONIGHT. A DRY & UNSEASONABLY COLD AIRMASS COMBINED WITH MAINLY
CLEAR SKIES WILL SET THE STAGE FOR A RAPID DROP IN TEMPS
THIS EVENING. LOW TEMPS OVERNIGHT ARE EXPECTED TO FALL
BELOW FREEZING ACROSS MOST OF SE MI & REMAIN BELOW
FREEZING FOR SEVERAL HRS. FROST SENSITIVE VEGETATION WILL BE
IMPACTED BY THESE COLD TEMPS.
MIZ047>049-053>055-060>063-068>070-075-076-082-083-301200-
/O.NEW.KDTX.FZ.W.0001.080430T0400Z-080430T1200Z/
MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-
LAPEER-ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-
LENAWEE-MONROE-
INCLUDING THE CITIES OF.MIDLAND.BAY CITY.BAD AXE.
SAGINAW.CARO.SANDUSKY.OWOSSO.FLINT.LAPEER.
PORT HURON.HOWELL.PONTIAC.WARREN.ANN ARBOR.DETROIT.
ADRIAN.MONROE
331 AM EDT TUE APR 29 2008
FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT
WEDNESDAY.
THE NATL WEATHER SVC IN DETROIT/PONTIAC HAS ISSUED A
FREEZE WARNING.WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM
EDT WEDNESDAY.
TEMPS WILL FALL BELOW FREEZING SHORTLY AFTER MIDNIGHT
TONIGHT. MIN TEMPS BY EARLY WED MORNING WILL
RANGE FROM THE LWR 30S AROUND DETROIT TO UPPER 20S ACROSS THE
REST OF SE MI. A FEW LOCATIONS IN THE THUMB REGION
WILL SEE TEMPS DROP INTO THE MID 20S.
A FREEZE WARNING MEANS SUB-FREEZING TEMPS ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS & OTHER
SENSITIVE VEGETATION.
$$
Posted by: Edward Vielmetti | April 29, 2008 at 09:10 AM
In the "last frost in zone 5b" department -
There are freeze warnings out tonight for Washtenaw County and
much of the rest of SE Michigan. Low temperatures will mean that
tender vegetations are at risk. You might want to bring your
hanging baskets in, or cover your outdoor plants.
The normal last frost date for this area is May 15, so this
is hardly unexpected.
Posted by: Edward Vielmetti | May 18, 2008 at 08:43 PM