GWC’s Weather Week That Was – April 27 – May 3, 2025
Greg’s Weather Center – Data for the Week of April 27 – May 3, 2025
Location: South Plainfield, NJ
Latitude: 40.58 N
Longitude: 74.42 W
| Date | High Temp | Low Temp | Diurnal Range | Rainfall | Peak Rainfall Rate | High Pressure | Low Pressure | Pressure Change |
| 4/27/2025 | 62 | 47 | 15 | 0.00 | 0.00 | 30.14 | 29.86 | 0.28 |
| 4/28/2025 | 76 | 43 | 33 | 0.00 | 0.00 | 30.29 | 30.14 | 0.15 |
| 4/29/2025 | 82 | 43 | 39 | 0.00 | 0.00 | 30.22 | 29.84 | 0.38 |
| 4/30/2025 | 75 | 52 | 23 | 0.00 | 0.00 | 30.07 | 29.83 | 0.24 |
| 5/1/2025 | 69 | 46 | 23 | 0.00 | 0.00 | 30.14 | 29.93 | 0.21 |
| 5/2/2025 | 85 | 53 | 32 | 0.00 | 0.00 | 29.91 | 29.77 | 0.14 |
| 5/3/2025 | 86 | 57 | 29 | 0.31 | 0.38 | 29.88 | 29.76 | 0.12 |
Temperature for the Week of April 27 – May 3, 2025
- Average High Temperature: 76.4°
- Max Temperature: 86° on May 3rd
- Min Temperature: 43° on April 28th and April 29th
Diurnal Range for the Week of April 27 – May 3, 2025
NOTE: The diurnal range of temperature is the difference between the high temperature and low temperature on a given day.
- Average Diurnal Range of Temperature: 27.7°
- Max Diurnal Range: 39° on April 29th
- Min Diurnal Range: 15° on April 27th
Rainfall for the Week of April 27 – May 3, 2025
- Average Daily Rainfall: 0.04 inches
- Max Rainfall: 0.31 inches on May 3rd
- Min Rainfall: 0.00 inches on April 27th, 28th, 29th, 30th, May 1st and May 2nd.
- Peak Rainfall Rate: 0.38 inches per hour on May 3rd.
Pressure for the Week of April 27 – May 3, 2025
- Max Pressure: 30.29 on April 28th
- Min Pressure: 29.76 on May 3rd
- Largest Pressure Drop: 0.45 of an inch or 15 millibars from 9:24 AM on April 28th to 7:19 PM on April 29th
- Largest Pressure Rise: 0.43 of an inch or 14.3 millibars from 4:18 AM on April 27th to 9:24 AM on April 28th
Summary
The week of April 27th to May 3rd, 2025 was nearly a complete repeat of the week before. The only difference was that this week was a little warmer and wetter. There were three more days of 80-degree weather and an average high temperature of 76.4 degrees. May 3rd was the warmest day yet at 86° and the eighth day of 2025 with a high of at least 80.
Like the previous week, there was no measurable rain until Saturday, but it was a wetter Saturday with 0.31 of an inch of rain from late afternoon and evening storms. Since April 12th, there have been 17 days without any rain, and there has only been 0.60 of an inch of rain. The stormiest day of the week was May 3rd with barometric pressure falling to its lowest level of the period at 29.76 inches or 1008 millibars.
Scattered showers and storms developed across the Garden State on Saturday afternoon with several producing warnings in Hunterdon, Somerset, Middlesex, Union, Monmouth and Ocean counties. The Jones Road fire was finally 100% contained. Another wildfire developed along Route 46 near Hackettstown in Warren County on Friday, but it was much smaller at only 100 acres and fully contained by Saturday morning.