E145 pilot reported getting a shock when attempting to check an aircraft window while in the rain.

Attributes
ACN	1569618
Time
Date	201805
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	EMB ERJ 145 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Initial Climb
Flight Plan	IFR
Person 1
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Commercial
Events
Anomaly	Aircraft Equipment Problem Less Severe Inflight Event / Encounter Weather / Turbulence

Narrative:

[There may have been] static build up from rain that we were flying through.on the initial climb out; while leaving ZZZ; we were going through some rain. I began to hear a type of electric spark sound coming from captain's window and when I grabbed the handle to make sure that it was closed; I experienced what I would say an electric shock. Then; I began to feel unease and decided to divert.[we should] check all airplanes for proper grounding.

Original NASA ASRS Text

Title: E145 Pilot reported getting a shock when attempting to check an aircraft window while in the rain.

Narrative: [There may have been] static build up from rain that we were flying through.On the initial climb out; while leaving ZZZ; we were going through some rain. I began to hear a type of electric spark sound coming from Captain's window and when I grabbed the handle to make sure that it was closed; I experienced what I would say an electric shock. Then; I began to feel unease and decided to divert.[We should] check all airplanes for proper grounding.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.