Category: Global Precipitation Summaries

GOES-East Air Mass RGB overlaid with the NWS OPC North Atlantic Surface Analysis

Blizzard Slames Northeast, Smashes Records

March 2, 2026

The Northeast U.S. ended a multi-year streak of avoiding a powerful nor’easter that would deliver a blizzard to the I-95 corridor. The NWS Weather Prediction

Monthly precipitation and anomalies for January 2026 and the La Nina composite for January

Global Precipitation Summary for January 2026

February 18, 2026

Download Headlines: La Nina rainfall anomaly pattern still holding on with RNino3.4 Index at -0.9K Flooding in southeast Africa, southern Europe and even New Zealand

raining dark cloudy storm cloud nature in rainy season.

Review of Global Precipitation for 2025

January 27, 2026

Download Headlines: A La Nina pattern dominates the tropics in the annual anomaly map The 2025 anomaly pattern again reinforces the long-term precipitation trend pattern

Figure 2. Correlations between anomaly patterns of individual months (40oN-40oS) and El Nino and La Nina composites during January 2025-December 2025. Also shown is Nino 3.4.

Global Precipitation Summary for December 2025

January 12, 2026

Download Headlines: La Nina signal remains evident in rainfall anomalies across much of tropics Flooding in northwest U.S. from atmospheric rivers Intense rain events and

Global Precipitation Summary for November 2025

December 10, 2025

Download Headlines Floods and landslides in South Asia kill 1300 related to tropical cyclones and La Nina The La Nina continues to affect the rainfall

Figure 1. Monthly precipitation and anomalies in October 2025 and La Nina composite for October.

Global Precipitation Summary for October 2025

November 17, 2025

Download Headlines Weak La Nina continues to affect tropical belt rainfall pattern mainly from Indian Ocean to central Pacific E. Pac. tropical cyclones cause flooding

Graphs of monthly precipitation and anomalies

Global Precipitation Summary for September 2025

October 14, 2025

Download Headlines: La Nina continues weak comeback in tropical rainfall pattern Western U.S. and eastern Europe get some rainfall relief from drought Atlantic hurricane season

Figure 1. Monthly precipitation and anomalies in August 2025 and La Nina anomaly composite for the month of August.

Global Precipitation Summary for August 2025

September 12, 2025

Download Headlines: South Asian monsoon remains strong with flooding in India, Pakistan and Nepal Heat wave in Europe enhances drought and wildfire occurrence Hurricane Erin

Figure 2. Monthly time series of GPCP global (land+ocean) precipitation anomalies (January 1983-July 2025) and GISS global mean temperature anomalies (January 1983-July 2025).

Global Precipitation Summary for July 2025

August 14, 2025

Download Headlines Northern Hemisphere summer conditions for July provided high surface temperatures (land and ocean) and extremes in precipitation, including a flood tragedy in Texas

Figure 4. GRACE-based drought analysis for early June 2025 (https://nasagrace.unl.edu/)

Global Precipitation Summary for May 2025

June 16, 2025

Download Headlines: The summer South Asian monsoon gets a strong early start, with associated floods in Mumbai ENSO nears a very near neutral SST index,