Indiana Climate and Weather Report – Facts for Fancy Fruit

Indiana Climate and Weather Report


The biggest topic seems to be how wet it is and how much more rain Indiana can expect. So far, May has experienced near-normal precipitation throughout the central part of the state with 0.5”-2” in southern and northern regions (Figure 1).  Combining this with April’s precipitation, however, means the soil moisture is still 60mm to over 80mm above average (Figure 2), causing saturated soils and the propensity for flooding anytime precipitation occurs. Speaking of which, 0.25”-1.5” of additional precipitation is expected over the next 7 days with the lower amounts favoring the northwestern part of the state.  Could there be drying beyond that?  The climate outlook for May 16-22 is indicating slight probabilities for below-normal precipitation in the northern counties, but the rest of the state is statistically uncertain to predict above- or below-normal precipitation with confidence.  However, keep in mind that normal precipitation (based upon 1981-2010 data) during that time period is still 1”-1.5”.

Modified growing degree-days (MGDDs) since April 1 have accumulated to 150-400 (from north to south) across the state, which is within 40 units of the climatological average. Northern Indiana is most behind in MGDDs with a departure of -40 to -60 units.  The climate outlook for May has significant probabilities of above normal temperatures so hopefully on days when it is not raining, skies will clear enough to allow more rapid MGDD accumulation.

Beth Hall, PhD
Director, Indiana State Climate Office


Share This Article
It is the policy of the Purdue University that all persons have equal opportunity and access to its educational programs, services, activities, and facilities without regard to race, religion, color, sex, age, national origin or ancestry, marital status, parental status, sexual orientation, disability or status as a veteran. Purdue is an Affirmative Action Institution. This material may be available in alternative formats. 1-888-EXT-INFO Disclaimer: Reference to products in this publication is not intended to be an endorsement to the exclusion of others which may have similar uses. Any person using products listed in this publication assumes full responsibility for their use in accordance with current directions of the manufacturer.